Updates for 0.16.0 releasev0.16.0

8 files changed, 336 insertions, 309 deletions

diff --git a/LICENSE b/LICENSE
index 7b90b56..da8df38 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) 2014-2022 the build2 authors (see the AUTHORS file).
+Copyright (c) 2014-2023 the build2 authors (see the AUTHORS file).
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
diff --git a/doc/release.cli b/doc/release.cli
index b24fb71..8aba681 100644
--- a/doc/release.cli
+++ b/doc/release.cli
@@ -250,6 +250,9 @@ distribution from \c{etc/stage} and add the pre-distributed packages
 
 \h#stage-machines|Update \c{stage} \c{buildtab}s and build machines|
 
+  NOTE: may want to keep old machines around for public testing (since we use
+  existing public buildtabs, none of the new machines will be used).
+
   Note: normally, we try to do all of this as part of normal development
   (e.g., when adding new machines, etc).
 
@@ -336,14 +339,18 @@ distribution from \c{etc/stage} and add the pre-distributed packages
 
 \h#test-extra|Perform extra testing|
 
-  CI \c{libauto-symexport}.
+  CI: (check for any new repositories in github.com/build2/)\n
+  \n
+  \c{libauto-symexport}\n
+  \c{hello-thrift}\n
+  \c{assembler-with-cpp}\n
 
   Test \c{cxx20-modules-examples} (see \c{test} script).
 
   Test any third-party/demos (\c{build2-dynamic-module-demo},
   \c{cherimcu}, \c{boost-dependency}).
 
-  Test on ARM Mac (run tests for \c{libbutl/build2/bpkg/bdep}.
+  Test on ARM Mac (run tests for \c{libbutl/build2/bpkg/bdep}).
 
   Test build system modules (especially standard pre-installed).
 
@@ -603,6 +610,9 @@ distribution from \c{etc/stage} and add the pre-distributed packages
    manifest values. To resolve this we temporarily add (to \c{crontab})
    \c{--ignore-unknown} and make a note to restore.
 
+   Also change \c{--min-bpkg-version} from previous to current release
+   (not the one being released).
+
 \h#build-public|Verify queued packages build with \c{public}|
 
    This makes sure that the new version can be built with the old toolchain.
diff --git a/git/modules b/git/modules
index 4975ad2..415c795 100644
--- a/git/modules
+++ b/git/modules
@@ -1,21 +1,22 @@
-modules="         \
-git               \
-change            \
-libbutl           \
-libbutl.bash      \
-build2            \
-libbpkg           \
-bpkg              \
-bpkg-util         \
-bdep              \
-bdep-util         \
-brep              \
-libbbot           \
-bbot              \
-libbuild2-hello   \
-libbuild2-rust    \
-libbuild2-kconfig \
-libbuild2-autoconf"
+modules="          \
+git                \
+change             \
+libbutl            \
+libbutl.bash       \
+build2             \
+libbpkg            \
+bpkg               \
+bpkg-util          \
+bdep               \
+bdep-util          \
+brep               \
+libbbot            \
+bbot               \
+libbuild2-hello    \
+libbuild2-rust     \
+libbuild2-kconfig  \
+libbuild2-autoconf \
+libbuild2-qt"
 
 # During release it is useful to exclude some of these so can do mass
 # commits (like version updates).
@@ -31,7 +32,7 @@ modules="$modules libpkg-config"
 modules="$modules etc"
 modules="$modules private"
 
-# We don't tag git/, libbuild2-hello.
+# We don't tag git/, libbuild2-*.
 # And etc/, private/, build2-toolchain/ are tagged manually.
 #
 tag_modules="     \
@@ -70,6 +71,8 @@ libbuild2-hello    \
 libbuild2-rust     \
 libbuild2-kconfig  \
 libbuild2-autoconf \
+libbuild2-qt       \
 buildos            \
 msvc-linux         \
-openssl-agent"
+openssl-agent      \
+libpkg-config"
diff --git a/intro2-tldr.orig b/intro2-tldr.orig
index 37b10b8..445493d 100644
--- a/intro2-tldr.orig
+++ b/intro2-tldr.orig
@@ -1,7 +1,7 @@
-Script started on Tue 26 Jul 2022 11:35:07 AM SAST
+Script started on 2023-06-28 11:17:30+02:00 [COMMAND="./intro2-tldr" TERM="xterm-256color" TTY="/dev/pts/21" COLUMNS="160" LINES="47"]
 created new executable project hello in /tmp/hello.git/
-[master (root-commit) 8db934f] first commit
- 13 files changed, 141 insertions(+)
+[master (root-commit) ddbbb0a] first commit
+ 13 files changed, 143 insertions(+)
  create mode 100644 .gitattributes
  create mode 100644 .gitignore
  create mode 100644 README.md
@@ -33,7 +33,7 @@ hello
 ├── README.md
 └── repositories.manifest
 
-2 directories, 9 files
+3 directories, 9 files
 
 + cd hello
 
@@ -45,7 +45,7 @@ synchronizing:
 
 + b
 mkdir ../hello-gcc/hello/fsdir{hello/}
-c++ hello/cxx{hello}@../hello-gcc/hello/hello/
+c++ hello/cxx{hello} -> ../hello-gcc/hello/hello/obje{hello}
 ld ../hello-gcc/hello/hello/exe{hello}
 ln ../hello-gcc/hello/hello/exe{hello} -> hello/
 
@@ -57,9 +57,9 @@ fetching git:build2.org/hello/libhello#v1.0.0 (prerequisite of dir:/tmp/hello)
 synchronizing /tmp/hello-gcc/:
   new libhello/1.0.0+4 (required by hello)
   upgrade hello/0.1.0#1
-version.in ../hello-gcc/libhello-1.0.0+4/libhello/version.hxx.in
-c++ ../hello-gcc/libhello-1.0.0+4/libhello/cxx{hello}
-c++ hello/cxx{hello}@../hello-gcc/hello/hello/
+version ../hello-gcc/libhello-1.0.0+4/libhello/in{version} -> ../hello-gcc/libhello-1.0.0+4/libhello/hxx{version}
+c++ ../hello-gcc/libhello-1.0.0+4/libhello/cxx{hello} -> ../hello-gcc/libhello-1.0.0+4/libhello/objs{hello}
+c++ hello/cxx{hello} -> ../hello-gcc/hello/hello/obje{hello}
 ld ../hello-gcc/libhello-1.0.0+4/libhello/libs{hello}
 ld ../hello-gcc/hello/hello/exe{hello}
 ln ../hello-gcc/hello/hello/exe{hello} -> hello/
@@ -71,18 +71,20 @@ fetching git:build2.org/hello/libprint##HEAD (prerequisite of git:build2.org/hel
 
 + bdep status -i
 hello configured 0.1.0#1
-  libhello ^1.0.0 configured 1.0.0+4 available [1.1.0+10] [1.0.0+10]
+  libhello ^1.0.0 configured 1.0.0+4 available [1.1.0+11] [1.0.0+11]
 
 + bdep sync libhello
 synchronizing:
-  new libformat/1.0.0+10 (required by libhello)
-  new libprint/1.0.0+10 (required by libhello)
-  upgrade libhello/1.1.0+10
+  new libformat/1.0.0+11 (required by libhello)
+  new libprint/1.0.0+11 (required by libhello)
+  upgrade libhello/1.1.0+11
   reconfigure hello/0.1.0#1
 
 + bdep sync libhello/1.0.0
 synchronizing:
-  drop libprint/1.0.0+10 (unused)
-  drop libformat/1.0.0+10 (unused)
-  downgrade libhello/1.0.0+10
+  drop libprint/1.0.0+11 (unused)
+  drop libformat/1.0.0+11 (unused)
+  downgrade libhello/1.0.0+11
   reconfigure hello/0.1.0#1
+
+Script done on 2023-06-28 11:17:55+02:00 [COMMAND_EXIT_CODE="0"]
diff --git a/intro2-tour b/intro2-tour
index aa92b5e..8af8fea 100755
--- a/intro2-tour
+++ b/intro2-tour
@@ -18,7 +18,7 @@ tmp=/tmp
 show=y
 
 gcc=g++
-clang=clang++-5.0
+clang=clang++-16
 msvc=cl-15
 repo=https://stage.build2.org/1/
 trust="EC:50:13:E2:3D:F7:92:B4:50:0B:BF:2A:1F:7D:31:04:C6:57:6F:BC:BE:04:2E:E0:58:14:FA:66:66:21:1F:14"
@@ -358,7 +358,7 @@ show bdep status
 show bdep release --alpha --push
 show bdep release --no-open --push
 
-show bdep publish --simulate success
+show bdep publish --simulate success --repository https://stage.build2.org
 
 show bdep release --open --push
 
diff --git a/intro2-tour.orig b/intro2-tour.orig
index be85de2..53015a0 100644
--- a/intro2-tour.orig
+++ b/intro2-tour.orig
@@ -1,4 +1,4 @@
-Script started on Tue 26 Jul 2022 01:15:30 PM SAST
+Script started on 2023-06-28 11:58:39+02:00 [COMMAND="./intro2-tour" TERM="xterm-256color" TTY="/dev/pts/21" COLUMNS="160" LINES="47"]
 
 + bdep new -t exe -l c++ hello
 created new executable project hello in /tmp/hello/
@@ -17,7 +17,7 @@ hello
 ├── README.md
 └── repositories.manifest
 
-2 directories, 9 files
+3 directories, 9 files
 
 + cd hello
 
@@ -60,14 +60,15 @@ EOE
 : 1
 name: hello
 version: 0.1.0-a.0.z
+language: c++
 summary: hello C++ executable
 license: other: proprietary ; Not free/open source.
 description-file: README.md
 url: https://example.org/hello
 email: boris@codesynthesis.com
 #build-error-email: boris@codesynthesis.com
-depends: * build2 >= 0.15.0-
-depends: * bpkg >= 0.15.0-
+depends: * build2 >= 0.15.0
+depends: * bpkg >= 0.15.0
 #depends: libhello ^1.0.0
 
 + bdep init -C ../hello-gcc @gcc cc config.cxx=g++
@@ -76,7 +77,7 @@ created configuration @gcc /tmp/hello-gcc/ 1 target default,forwarded,auto-synch
 synchronizing:
   new hello/0.1.0-a.0.19700101000000
 
-+ bdep init -C ../hello-clang @clang cc config.cxx=clang++-5.0
++ bdep init -C ../hello-clang @clang cc config.cxx=clang++-16
 initializing in project /tmp/hello/
 created configuration @clang /tmp/hello-clang/ 2 target auto-synchronized
 synchronizing:
@@ -104,12 +105,12 @@ hello configured 0.1.0-a.0.19700101000000
 
 + b
 mkdir ../hello-gcc/hello/fsdir{hello/}
-c++ hello/cxx{hello}@../hello-gcc/hello/hello/
+c++ hello/cxx{hello} -> ../hello-gcc/hello/hello/obje{hello}
 ld ../hello-gcc/hello/hello/exe{hello}
 ln ../hello-gcc/hello/hello/exe{hello} -> hello/
 
 + b test
-test hello/testscript{testscript}@../hello-gcc/hello/hello/ ../hello-gcc/hello/hello/exe{hello}
+test ../hello-gcc/hello/hello/exe{hello} + hello/testscript{testscript}
 
 + hello/hello World
 Hello, World!
@@ -134,37 +135,37 @@ Hello, World!
         ├── hello.o
         └── hello.o.d
 
-6 directories, 11 files
+7 directories, 11 files
 
 + bdep status @clang
 hello configured 0.1.0-a.0.19700101000000
 
 + b ../hello-clang/hello/
 mkdir ../hello-clang/hello/fsdir{hello/}
-c++ hello/cxx{hello}@../hello-clang/hello/hello/
+c++ hello/cxx{hello} -> ../hello-clang/hello/hello/obje{hello}
 ld ../hello-clang/hello/hello/exe{hello}
 
 + b test: ../hello-clang/hello/
-test hello/testscript{testscript}@../hello-clang/hello/hello/ ../hello-clang/hello/hello/exe{hello}
+test ../hello-clang/hello/hello/exe{hello} + hello/testscript{testscript}
 
 + ../hello-clang/hello/hello/hello World
 Hello, World!
 rm ../hello-clang/hello/hello/exe{hello}
 rm ../hello-clang/hello/hello/obje{hello}
-rm ../hello-clang/hello/fsdir{hello/}
+rmdir ../hello-clang/hello/fsdir{hello/}
 
 + bdep test @clang
 mkdir ../hello-clang/hello/fsdir{hello/}
-c++ hello/cxx{hello}@../hello-clang/hello/hello/
+c++ hello/cxx{hello} -> ../hello-clang/hello/hello/obje{hello}
 ld ../hello-clang/hello/hello/exe{hello}
-test hello/testscript{testscript}@../hello-clang/hello/hello/ ../hello-clang/hello/hello/exe{hello}
+test ../hello-clang/hello/hello/exe{hello} + hello/testscript{testscript}
 
 + bdep test @gcc @clang
 in configuration @gcc:
-test hello/testscript{testscript}@../hello-gcc/hello/hello/ ../hello-gcc/hello/hello/exe{hello}
+test ../hello-gcc/hello/hello/exe{hello} + hello/testscript{testscript}
 
 in configuration @clang:
-test hello/testscript{testscript}@../hello-clang/hello/hello/ ../hello-clang/hello/hello/exe{hello}
+test ../hello-clang/hello/hello/exe{hello} + hello/testscript{testscript}
 
 + bdep init -C ../hello-mingw @mingw cc config.cxx=x86_64-w64-mingw32-g++
 initializing in project /tmp/hello/
@@ -174,11 +175,11 @@ synchronizing:
 
 + bdep update @mingw
 mkdir ../hello-mingw/hello/fsdir{hello/}
-c++ hello/cxx{hello}@../hello-mingw/hello/hello/
+c++ hello/cxx{hello} -> ../hello-mingw/hello/hello/obje{hello}
 ld ../hello-mingw/hello/hello/exe{hello}
 
 + bdep test @mingw
-test hello/testscript{testscript}@../hello-mingw/hello/hello/ ../hello-mingw/hello/hello/exe{hello}
+test ../hello-mingw/hello/hello/exe{hello} + hello/testscript{testscript}
 
 + ../hello-mingw/hello/hello/hello.exe Windows
 Hello, Windows!
@@ -186,8 +187,8 @@ Hello, Windows!
 + git add .
 
 + git commit -m Initial implementation
-[master (root-commit) 39e8769] Initial implementation
- 13 files changed, 141 insertions(+)
+[master (root-commit) 014a3ac] Initial implementation
+ 13 files changed, 143 insertions(+)
  create mode 100644 .gitattributes
  create mode 100644 .gitignore
  create mode 100644 README.md
@@ -206,18 +207,18 @@ Hello, Windows!
 
 + git push --no-progress origin master -u --force
 To github.com:boris-kolpackov/hello.git
- + 342c509...39e8769 master -> master (forced update)
-Branch 'master' set up to track remote branch 'master' from 'origin'.
+ + 943049b...014a3ac master -> master (forced update)
+branch 'master' set up to track 'origin/master'.
 
 + bdep ci --simulate success
 submitting:
   to:      https://ci.stage.build2.org
-  in:      https://github.com/boris-kolpackov/hello.git#master@39e8769fd4cf680ddf9ee24d36074f912002ddc9
+  in:      https://github.com/boris-kolpackov/hello.git#master@014a3ac5e6132b6951f6bd8c2d759ae881dea3f6
   package: hello
-  version: 0.1.0-a.0.20220726111554.39e8769fd4cf
-continue? [y/n] y
-CI request is queued: https://ci.stage.build2.org/@e250b05e-a618-4765-8177-37688a473592
-reference: e250b05e-a618-4765-8177-37688a473592
+  version: 0.1.0-a.0.20230628095907.014a3ac5e613
+continue? [Y/n] y
+CI request is queued: https://ci.stage.build2.org/@8338f18e-8ebf-4def-9520-473748b4d6f4
+reference: 8338f18e-8ebf-4def-9520-473748b4d6f4
 
 + bdep deinit @gcc @clang
 deinitializing in project /tmp/hello/
@@ -235,7 +236,7 @@ created configuration @gcc /tmp/hello-gcc/ 1 target default,forwarded,auto-synch
 synchronizing:
   new hello/0.1.0-a.0.19700101000000
 
-+ bdep init -C ../hello-clang @clang cc config.cxx=clang++-5.0
++ bdep init -C ../hello-clang @clang cc config.cxx=clang++-16
 initializing in project /tmp/hello/
 created configuration @clang /tmp/hello-clang/ 2 target auto-synchronized
 synchronizing:
@@ -246,15 +247,15 @@ git:build2.org/hello/libhello https://git.build2.org/hello/libhello.git
 prerequisite git:build2.org/hello/libprint##HEAD https://git.build2.org/hello/libprint.git##HEAD
 prerequisite git:build2.org/hello/libformat##HEAD https://git.build2.org/hello/libformat.git##HEAD
 
-libhello/1.0.0+10
-libhello/1.1.0+10
+libhello/1.0.0+11
+libhello/1.1.0+11
 
 + bpkg rep-info https://git.build2.org/hello/libhello.git#HEAD
 git:build2.org/hello/libhello#HEAD https://git.build2.org/hello/libhello.git#HEAD
 prerequisite git:build2.org/hello/libprint##HEAD https://git.build2.org/hello/libprint.git##HEAD
 prerequisite git:build2.org/hello/libformat##HEAD https://git.build2.org/hello/libformat.git##HEAD
 
-libhello/1.1.0+10
+libhello/1.1.0+11
 
 + bdep status
 fetching pkg:stage.build2.org (prerequisite of dir:/tmp/hello)
@@ -267,24 +268,24 @@ hello configured 0.1.0-a.0.19700101000000 available 0.1.0-a.0.19700101000000#1
 
 + bdep sync
 synchronizing:
-  new libhello/1.0.0+10 (required by hello)
+  new libhello/1.0.0+11 (required by hello)
   upgrade hello/0.1.0-a.0.19700101000000#1
 
 + b
 synchronizing /tmp/hello-gcc/:
   upgrade hello/0.1.0-a.0.19700101000000#2
-version.in ../hello-gcc/libhello-1.0.0+10/libhello/version.hxx.in
+version ../hello-gcc/libhello-1.0.0+11/libhello/in{version} -> ../hello-gcc/libhello-1.0.0+11/libhello/hxx{version}
 mkdir ../hello-gcc/hello/fsdir{hello/}
-c++ ../hello-gcc/libhello-1.0.0+10/libhello/cxx{hello}
-c++ hello/cxx{hello}@../hello-gcc/hello/hello/
-ld ../hello-gcc/libhello-1.0.0+10/libhello/libs{hello}
+c++ hello/cxx{hello} -> ../hello-gcc/hello/hello/obje{hello}
+c++ ../hello-gcc/libhello-1.0.0+11/libhello/cxx{hello} -> ../hello-gcc/libhello-1.0.0+11/libhello/objs{hello}
+ld ../hello-gcc/libhello-1.0.0+11/libhello/libs{hello}
 ld ../hello-gcc/hello/hello/exe{hello}
 ln ../hello-gcc/hello/hello/exe{hello} -> hello/
 
 + bdep status -ai
 in configuration @gcc:
 hello configured 0.1.0-a.0.19700101000000#2
-  libhello ^1.0.0 configured 1.0.0+10
+  libhello ^1.0.0 configured 1.0.0+11
 
 in configuration @clang:
 fetching pkg:stage.build2.org (prerequisite of dir:/tmp/hello)
@@ -295,37 +296,37 @@ in configuration @gcc:
 
 in configuration @clang:
 synchronizing:
-  new libhello/1.0.0+10 (required by hello)
+  new libhello/1.0.0+11 (required by hello)
   upgrade hello/0.1.0-a.0.19700101000000#1
 
 + bdep test -ai
 in configuration @gcc:
-c++ ../hello-gcc/libhello-1.0.0+10/tests/basics/cxx{driver}
-ld ../hello-gcc/libhello-1.0.0+10/tests/basics/exe{driver}
-test ../hello-gcc/libhello-1.0.0+10/tests/basics/exe{driver}
-test hello/testscript{testscript}@../hello-gcc/hello/hello/ ../hello-gcc/hello/hello/exe{hello}
+c++ ../hello-gcc/libhello-1.0.0+11/tests/basics/cxx{driver} -> ../hello-gcc/libhello-1.0.0+11/tests/basics/obje{driver}
+ld ../hello-gcc/libhello-1.0.0+11/tests/basics/exe{driver}
+test ../hello-gcc/libhello-1.0.0+11/tests/basics/exe{driver}
+test ../hello-gcc/hello/hello/exe{hello} + hello/testscript{testscript}
 
 in configuration @clang:
-version.in ../hello-clang/libhello-1.0.0+10/libhello/version.hxx.in
+version ../hello-clang/libhello-1.0.0+11/libhello/in{version} -> ../hello-clang/libhello-1.0.0+11/libhello/hxx{version}
 mkdir ../hello-clang/hello/fsdir{hello/}
-c++ ../hello-clang/libhello-1.0.0+10/libhello/cxx{hello}
-c++ ../hello-clang/libhello-1.0.0+10/tests/basics/cxx{driver}
-c++ hello/cxx{hello}@../hello-clang/hello/hello/
-ld ../hello-clang/libhello-1.0.0+10/libhello/libs{hello}
+c++ ../hello-clang/libhello-1.0.0+11/libhello/cxx{hello} -> ../hello-clang/libhello-1.0.0+11/libhello/objs{hello}
+c++ ../hello-clang/libhello-1.0.0+11/tests/basics/cxx{driver} -> ../hello-clang/libhello-1.0.0+11/tests/basics/obje{driver}
+c++ hello/cxx{hello} -> ../hello-clang/hello/hello/obje{hello}
+ld ../hello-clang/libhello-1.0.0+11/libhello/libs{hello}
 ld ../hello-clang/hello/hello/exe{hello}
-ld ../hello-clang/libhello-1.0.0+10/tests/basics/exe{driver}
-test ../hello-clang/libhello-1.0.0+10/tests/basics/exe{driver}
-test hello/testscript{testscript}@../hello-clang/hello/hello/ ../hello-clang/hello/hello/exe{hello}
+ld ../hello-clang/libhello-1.0.0+11/tests/basics/exe{driver}
+test ../hello-clang/hello/hello/exe{hello} + hello/testscript{testscript}
+test ../hello-clang/libhello-1.0.0+11/tests/basics/exe{driver}
 
 + bdep status
 hello configured 0.1.0-a.0.19700101000000#2 available 0.1.0-a.0.19700101000000#3
 
 + bdep sync
 synchronizing:
-  drop libhello/1.0.0+10 (unused)
+  drop libhello/1.0.0+11 (unused)
   upgrade hello/0.1.0-a.0.19700101000000#3
 synchronizing:
-  new libhello/1.0.0+10 (required by hello)
+  new libhello/1.0.0+11 (required by hello)
   upgrade hello/0.1.0-a.0.19700101000000#4
 
 + bdep fetch
@@ -335,29 +336,29 @@ fetching git:build2.org/hello/libprint##HEAD (prerequisite of git:build2.org/hel
 fetching pkg:stage.build2.org (prerequisite of dir:/tmp/hello)
 
 + bdep status libhello
-libhello configured 1.0.0+10 available [1.1.0+10]
+libhello configured 1.0.0+11 available [1.1.0+11]
 
 + bdep sync libhello
 synchronizing:
-  new libformat/1.0.0+10 (required by libhello)
-  new libprint/1.0.0+10 (required by libhello)
-  upgrade libhello/1.1.0+10
+  new libformat/1.0.0+11 (required by libhello)
+  new libprint/1.0.0+11 (required by libhello)
+  upgrade libhello/1.1.0+11
   reconfigure hello/0.1.0-a.0.19700101000000#4
 
 + bdep status -r
 hello configured 0.1.0-a.0.19700101000000#4
-  libhello ^1.0.0 configured 1.1.0+10
-    libformat ^1.0.0 configured 1.0.0+10
-    libprint ^1.0.0 configured 1.0.0+10
+  libhello ^1.0.0 configured 1.1.0+11
+    libformat ^1.0.0 configured 1.0.0+11
+    libprint ^1.0.0 configured 1.0.0+11
 
 + bdep status -o libhello
-libhello configured 1.1.0+10 available (1.1.0+10) [1.0.0+10]
+libhello configured 1.1.0+11 available (1.1.0+11) [1.0.0+11]
 
 + bdep sync libhello/1.0.0
 synchronizing:
-  drop libprint/1.0.0+10 (unused)
-  drop libformat/1.0.0+10 (unused)
-  downgrade libhello/1.0.0+10
+  drop libprint/1.0.0+11 (unused)
+  drop libformat/1.0.0+11 (unused)
+  downgrade libhello/1.0.0+11
   reconfigure hello/0.1.0-a.0.19700101000000#4
 
 + bdep new -C libextra-gcc -t lib -l c++ libextra cc config.cxx=g++
@@ -368,27 +369,27 @@ synchronizing:
 
 + b install: libextra/ config.install.root=/tmp/unpkg-gcc
 mkdir libextra-gcc/libextra/fsdir{libextra/}
-version.in libextra/libextra/version.hxx.in
-c++ libextra/libextra/cxx{extra}@libextra-gcc/libextra/libextra/
-c++ libextra/libextra/cxx{extra}@libextra-gcc/libextra/libextra/
-pc libextra-gcc/libextra/libextra/pca{extra}
-pc libextra-gcc/libextra/libextra/pc{extra}
-ar libextra-gcc/libextra/libextra/liba{extra}
-pc libextra-gcc/libextra/libextra/pcs{extra}
+version libextra/libextra/in{version} -> libextra-gcc/libextra/libextra/hxx{version}
+c++ libextra/libextra/cxx{extra} -> libextra-gcc/libextra/libextra/objs{extra}
+c++ libextra/libextra/cxx{extra} -> libextra-gcc/libextra/libextra/obja{extra}
+pc libextra-gcc/libextra/libextra/libs{extra} -> libextra-gcc/libextra/libextra/pcs{extra}
+pc libextra-gcc/libextra/libextra/liba{extra} -> libextra-gcc/libextra/libextra/pca{extra}
+pc libextra-gcc/libextra/libextra/lib{extra} -> libextra-gcc/libextra/libextra/pc{extra}
 ld libextra-gcc/libextra/libextra/libs{extra}
-install unpkg-gcc/
-install unpkg-gcc/include/
-install unpkg-gcc/include/libextra/
-install libextra/libextra/hxx{export}@libextra-gcc/libextra/libextra/
-install libextra/libextra/hxx{extra}@libextra-gcc/libextra/libextra/
-install unpkg-gcc/share/
-install unpkg-gcc/share/doc/
-install unpkg-gcc/share/doc/libextra/
-install libextra/manifest{manifest}@libextra-gcc/libextra/
-install libextra-gcc/libextra/libextra/hxx{version}
-install libextra-gcc/libextra/libextra/liba{extra}
-install libextra-gcc/libextra/libextra/libs{extra}
-install libextra/doc{README.md}@libextra-gcc/libextra/
+ar libextra-gcc/libextra/libextra/liba{extra}
+install -d unpkg-gcc/
+install -d unpkg-gcc/include/
+install -d unpkg-gcc/include/libextra/
+install libextra/libextra/hxx{export}@libextra-gcc/libextra/libextra/ -> unpkg-gcc/include/libextra/
+install libextra/libextra/hxx{extra}@libextra-gcc/libextra/libextra/ -> unpkg-gcc/include/libextra/
+install -d unpkg-gcc/share/
+install -d unpkg-gcc/share/doc/
+install -d unpkg-gcc/share/doc/libextra/
+install libextra/manifest{manifest}@libextra-gcc/libextra/ -> unpkg-gcc/share/doc/libextra/manifest
+install libextra-gcc/libextra/libextra/hxx{version} -> unpkg-gcc/include/libextra/
+install libextra-gcc/libextra/libextra/liba{extra} -> unpkg-gcc/lib/
+install libextra-gcc/libextra/libextra/libs{extra} -> unpkg-gcc/lib/
+install libextra/doc{README.md}@libextra-gcc/libextra/ -> unpkg-gcc/share/doc/libextra/
 
 + tree unpkg-gcc
 unpkg-gcc
@@ -411,7 +412,7 @@ unpkg-gcc
             ├── manifest
             └── README.md
 
-7 directories, 11 files
+8 directories, 11 files
 
 + bdep init -C ../hello-gcc-1 @gcc1 cc config.cxx=g++ config.cc.poptions=-I/tmp/unpkg-gcc/include config.cc.loptions=-L/tmp/unpkg-gcc/lib
 initializing in project /tmp/hello/
@@ -421,53 +422,53 @@ fetching git:build2.org/hello/libformat##HEAD (prerequisite of git:build2.org/he
 fetching git:build2.org/hello/libprint##HEAD (prerequisite of git:build2.org/hello/libhello)
 fetching pkg:stage.build2.org (prerequisite of dir:/tmp/hello)
 synchronizing:
-  new libformat/1.0.0+10 (required by libhello)
-  new libprint/1.0.0+10 (required by libhello)
-  new libhello/1.1.0+10 (required by hello)
+  new libformat/1.0.0+11 (required by libhello)
+  new libprint/1.0.0+11 (required by libhello)
+  new libhello/1.1.0+11 (required by hello)
   new hello/0.1.0-a.0.19700101000000
 
 + b test: ../hello-gcc-1/
-version.in ../hello-gcc-1/libformat-1.0.0+10/libformat/version.hxx.in
-version.in ../hello-gcc-1/libprint-1.0.0+10/libprint/version.hxx.in
-version.in ../hello-gcc-1/libhello-1.1.0+10/libhello/version.hxx.in
+version ../hello-gcc-1/libprint-1.0.0+11/libprint/in{version} -> ../hello-gcc-1/libprint-1.0.0+11/libprint/hxx{version}
+version ../hello-gcc-1/libformat-1.0.0+11/libformat/in{version} -> ../hello-gcc-1/libformat-1.0.0+11/libformat/hxx{version}
+version ../hello-gcc-1/libhello-1.1.0+11/libhello/in{version} -> ../hello-gcc-1/libhello-1.1.0+11/libhello/hxx{version}
 mkdir ../hello-gcc-1/hello/fsdir{hello/}
-c++ ../hello-gcc-1/libprint-1.0.0+10/tests/basics/cxx{driver}
-c++ ../hello-gcc-1/libhello-1.1.0+10/libhello/cxx{hello}
-c++ ../hello-gcc-1/libprint-1.0.0+10/libprint/cxx{print}
-c++ ../hello-gcc-1/libformat-1.0.0+10/tests/basics/cxx{driver}
-c++ ../hello-gcc-1/libhello-1.1.0+10/tests/basics/cxx{driver}
-c++ hello/cxx{hello}@../hello-gcc-1/hello/hello/
-c++ ../hello-gcc-1/libformat-1.0.0+10/libformat/cxx{format}
-ld ../hello-gcc-1/libprint-1.0.0+10/libprint/libs{print}
-ld ../hello-gcc-1/libprint-1.0.0+10/tests/basics/exe{driver}
-ld ../hello-gcc-1/libformat-1.0.0+10/libformat/libs{format}
-ld ../hello-gcc-1/libformat-1.0.0+10/tests/basics/exe{driver}
-ld ../hello-gcc-1/libhello-1.1.0+10/libhello/libs{hello}
+c++ ../hello-gcc-1/libformat-1.0.0+11/tests/basics/cxx{driver} -> ../hello-gcc-1/libformat-1.0.0+11/tests/basics/obje{driver}
+c++ ../hello-gcc-1/libformat-1.0.0+11/libformat/cxx{format} -> ../hello-gcc-1/libformat-1.0.0+11/libformat/objs{format}
+c++ ../hello-gcc-1/libprint-1.0.0+11/tests/basics/cxx{driver} -> ../hello-gcc-1/libprint-1.0.0+11/tests/basics/obje{driver}
+c++ ../hello-gcc-1/libhello-1.1.0+11/libhello/cxx{hello} -> ../hello-gcc-1/libhello-1.1.0+11/libhello/objs{hello}
+c++ ../hello-gcc-1/libprint-1.0.0+11/libprint/cxx{print} -> ../hello-gcc-1/libprint-1.0.0+11/libprint/objs{print}
+c++ hello/cxx{hello} -> ../hello-gcc-1/hello/hello/obje{hello}
+c++ ../hello-gcc-1/libhello-1.1.0+11/tests/basics/cxx{driver} -> ../hello-gcc-1/libhello-1.1.0+11/tests/basics/obje{driver}
+ld ../hello-gcc-1/libprint-1.0.0+11/libprint/libs{print}
+ld ../hello-gcc-1/libformat-1.0.0+11/libformat/libs{format}
+ld ../hello-gcc-1/libprint-1.0.0+11/tests/basics/exe{driver}
+ld ../hello-gcc-1/libformat-1.0.0+11/tests/basics/exe{driver}
+ld ../hello-gcc-1/libhello-1.1.0+11/libhello/libs{hello}
 ld ../hello-gcc-1/hello/hello/exe{hello}
-ld ../hello-gcc-1/libhello-1.1.0+10/tests/basics/exe{driver}
-test hello/testscript{testscript}@../hello-gcc-1/hello/hello/ ../hello-gcc-1/hello/hello/exe{hello}
-test ../hello-gcc-1/libformat-1.0.0+10/tests/basics/exe{driver}
-test ../hello-gcc-1/libhello-1.1.0+10/tests/basics/exe{driver}
-test ../hello-gcc-1/libprint-1.0.0+10/tests/basics/exe{driver}
+ld ../hello-gcc-1/libhello-1.1.0+11/tests/basics/exe{driver}
+test ../hello-gcc-1/libhello-1.1.0+11/tests/basics/exe{driver}
+test ../hello-gcc-1/libformat-1.0.0+11/tests/basics/exe{driver}
+test ../hello-gcc-1/hello/hello/exe{hello} + hello/testscript{testscript}
+test ../hello-gcc-1/libprint-1.0.0+11/tests/basics/exe{driver}
 
 + b configure: ../hello-gcc/ config.cc.poptions+=-I/tmp/unpkg-gcc/include config.cc.loptions+=-L/tmp/unpkg-gcc/lib
 save ../hello-gcc/build/config.build
 save ../hello-gcc/hello/build/config.build
-save ../hello-gcc/libhello-1.0.0+10/build/config.build
-save ../hello-gcc/libhello-1.0.0+10/tests/build/config.build
+save ../hello-gcc/libhello-1.0.0+11/build/config.build
+save ../hello-gcc/libhello-1.0.0+11/tests/build/config.build
 
 + b test
-version.in ../hello-gcc/libhello-1.0.0+10/libhello/version.hxx.in
-c++ ../hello-gcc/libhello-1.0.0+10/libhello/cxx{hello}
-c++ hello/cxx{hello}@../hello-gcc/hello/hello/
-ld ../hello-gcc/libhello-1.0.0+10/libhello/libs{hello}
+version ../hello-gcc/libhello-1.0.0+11/libhello/in{version} -> ../hello-gcc/libhello-1.0.0+11/libhello/hxx{version}
+c++ ../hello-gcc/libhello-1.0.0+11/libhello/cxx{hello} -> ../hello-gcc/libhello-1.0.0+11/libhello/objs{hello}
+c++ hello/cxx{hello} -> ../hello-gcc/hello/hello/obje{hello}
+ld ../hello-gcc/libhello-1.0.0+11/libhello/libs{hello}
 ld ../hello-gcc/hello/hello/exe{hello}
 ln ../hello-gcc/hello/hello/exe{hello} -> hello/
-test hello/testscript{testscript}@../hello-gcc/hello/hello/ ../hello-gcc/hello/hello/exe{hello}
+test ../hello-gcc/hello/hello/exe{hello} + hello/testscript{testscript}
 
 + bdep sync ?sys:libsqlite3
 synchronizing:
-  configure sys:libsqlite3/* (required by hello)
+  configure sys:libsqlite3/3.40.1 (required by hello)
   upgrade hello/0.1.0-a.0.19700101000000#5
 
 + bdep new -t exe -l c++ hello
@@ -479,7 +480,7 @@ created configuration @gcc /tmp/hello-gcc/ 1 target default,forwarded,auto-synch
 synchronizing:
   new hello/0.1.0-a.0.19700101000000
 
-+ bdep init -C @clang cc config.cxx=clang++-5.0
++ bdep init -C @clang cc config.cxx=clang++-16
 initializing in project /tmp/hello/
 created configuration @clang /tmp/hello-clang/ 2 target auto-synchronized
 synchronizing:
@@ -506,14 +507,14 @@ synchronizing /tmp/hello-gcc/:
   new xxd/8.2.3075+1 [/tmp/hello-host/] (required by hello)
   upgrade hello/0.1.0-a.0.19700101000000#1
 mkdir ../hello-gcc/hello/fsdir{hello/}
-c ../hello-host/xxd-8.2.3075+1/c{xxd}
+c ../hello-host/xxd-8.2.3075+1/c{xxd} -> ../hello-host/xxd-8.2.3075+1/obje{xxd}
 ld ../hello-host/xxd-8.2.3075+1/exe{xxd}
-xxd ../hello-gcc/hello/hello/cxx{names}
-c++ ../hello-gcc/hello/hello/cxx{names}
-c++ hello/cxx{hello}@../hello-gcc/hello/hello/
+xxd hello/file{names.txt} -> ../hello-gcc/hello/hello/cxx{names}
+c++ ../hello-gcc/hello/hello/cxx{names} -> ../hello-gcc/hello/hello/obje{names}
+c++ hello/cxx{hello} -> ../hello-gcc/hello/hello/obje{hello}
 ld ../hello-gcc/hello/hello/exe{hello}
 ln ../hello-gcc/hello/hello/exe{hello} -> hello/
-test hello/testscript{testscript}@../hello-gcc/hello/hello/ ../hello-gcc/hello/hello/exe{hello}
+test ../hello-gcc/hello/hello/exe{hello} + hello/testscript{testscript}
 
 + bdep config list
 @gcc /tmp/hello-gcc/ 1 target default,forwarded,auto-synchronized
@@ -528,9 +529,9 @@ fetching pkg:cppget.org/stable (complements pkg:cppget.org/testing)
 synchronizing:
   upgrade hello/0.1.0-a.0.19700101000000#1
 mkdir ../hello-clang/hello/fsdir{hello/}
-xxd ../hello-clang/hello/hello/cxx{names}
-c++ ../hello-clang/hello/hello/cxx{names}
-c++ hello/cxx{hello}@../hello-clang/hello/hello/
+xxd hello/file{names.txt} -> ../hello-clang/hello/hello/cxx{names}
+c++ ../hello-clang/hello/hello/cxx{names} -> ../hello-clang/hello/hello/obje{names}
+c++ hello/cxx{hello} -> ../hello-clang/hello/hello/obje{hello}
 ld ../hello-clang/hello/hello/exe{hello}
 
 + b
@@ -543,11 +544,11 @@ while searching for configuration for build-time dependency libbuild2-hello of p
 while synchronizing configuration /tmp/hello-gcc/
 continue? [Y/n] y
 synchronizing /tmp/hello-gcc/:
-  new libbuild2-hello/0.1.0-a.0.20210928065245.4c3109c2b741 [/tmp/hello-build2/] (required by hello [/tmp/hello-clang/], hello [/tmp/hello-gcc/])
+  new libbuild2-hello/0.1.0 [/tmp/hello-build2/] (required by hello [/tmp/hello-clang/], hello [/tmp/hello-gcc/])
   upgrade hello/0.1.0-a.0.19700101000000#2 [/tmp/hello-gcc/]
   upgrade hello/0.1.0-a.0.19700101000000#2 [/tmp/hello-clang/]
-c++ ../hello-build2/libbuild2-hello-0.1.0-a.0.20210928065245.4c3109c2b741/libbuild2/hello/cxx{init}
-ld ../hello-build2/libbuild2-hello-0.1.0-a.0.20210928065245.4c3109c2b741/libbuild2/hello/libs{build2-hello}
+c++ ../hello-build2/libbuild2-hello-0.1.0/libbuild2/hello/cxx{init} -> ../hello-build2/libbuild2-hello-0.1.0/libbuild2/hello/objs{init}
+ld ../hello-build2/libbuild2-hello-0.1.0/libbuild2/hello/libs{build2-hello}
 hello/buildfile:10:7: info: module hello initialized
 hello/buildfile:10:7: info: module hello initialized
 hello/buildfile:10:7: info: module hello initialized
@@ -574,7 +575,7 @@ created configuration @base /tmp/hello-base/ 1 target auto-synchronized
 + bdep config create ../hello-gcc @gcc --default cc config.cxx=g++
 created configuration @gcc /tmp/hello-gcc/ 2 target default,forwarded,auto-synchronized
 
-+ bdep config create ../hello-clang @clang cc config.cxx=clang++-5.0
++ bdep config create ../hello-clang @clang cc config.cxx=clang++-16
 created configuration @clang /tmp/hello-clang/ 3 target auto-synchronized
 
 + bdep config link @gcc @base
@@ -587,7 +588,7 @@ linked configuration @clang (target) with configuration @base (target)
 initializing in project /tmp/hello/
 fetching pkg:stage.build2.org (prerequisite of dir:/tmp/hello)
 synchronizing:
-  new libhello/1.0.0+10 [/tmp/hello-base/] (required by hello)
+  new libhello/1.0.0+11 [/tmp/hello-base/] (required by hello)
   new hello/0.1.0-a.0.19700101000000
 
 + bdep init @clang
@@ -597,16 +598,17 @@ synchronizing:
   new hello/0.1.0-a.0.19700101000000 [/tmp/hello-clang/]
 
 + bdep update @gcc
-version.in ../hello-base/libhello-1.0.0+10/libhello/version.hxx.in
+version ../hello-base/libhello-1.0.0+11/libhello/in{version} -> ../hello-base/libhello-1.0.0+11/libhello/hxx{version}
 mkdir ../hello-gcc/hello/fsdir{hello/}
-c++ ../hello-base/libhello-1.0.0+10/libhello/cxx{hello}
-c++ hello/cxx{hello}@../hello-gcc/hello/hello/
-ld ../hello-base/libhello-1.0.0+10/libhello/libs{hello}
+c++ ../hello-base/libhello-1.0.0+11/libhello/cxx{hello} -> ../hello-base/libhello-1.0.0+11/libhello/objs{hello}
+c++ hello/cxx{hello} -> ../hello-gcc/hello/hello/obje{hello}
+ld ../hello-base/libhello-1.0.0+11/libhello/libs{hello}
 ld ../hello-gcc/hello/hello/exe{hello}
+ln ../hello-gcc/hello/hello/exe{hello} -> hello/
 
 + bdep update @clang
 mkdir ../hello-clang/hello/fsdir{hello/}
-c++ hello/cxx{hello}@../hello-clang/hello/hello/
+c++ hello/cxx{hello} -> ../hello-clang/hello/hello/obje{hello}
 ld ../hello-clang/hello/hello/exe{hello}
 
 + bdep new -C hello-gcc @gcc -t exe -l c++ hello cc config.cxx=g++
@@ -620,8 +622,8 @@ To github.com:boris-kolpackov/hello.git
  - [deleted]         v0.1.0-a.1
 To github.com:boris-kolpackov/hello.git
  - [deleted]         v0.1.0
-[master (root-commit) dbb0b20] Initial implementation
- 13 files changed, 141 insertions(+)
+[master (root-commit) ba9d966] Initial implementation
+ 13 files changed, 143 insertions(+)
  create mode 100644 .gitattributes
  create mode 100644 .gitignore
  create mode 100644 README.md
@@ -636,15 +638,15 @@ To github.com:boris-kolpackov/hello.git
  create mode 100644 manifest
  create mode 100644 repositories.manifest
 To github.com:boris-kolpackov/hello.git
- + 39e8769...dbb0b20 master -> master (forced update)
-Branch 'master' set up to track remote branch 'master' from 'origin'.
+ + 014a3ac...ba9d966 master -> master (forced update)
+branch 'master' set up to track 'origin/master'.
 
 + bdep status
-hello configured 0.1.0-a.0.19700101000000 available 0.1.0-a.0.20220726111944.dbb0b209a4f2
+hello configured 0.1.0-a.0.19700101000000 available 0.1.0-a.0.20230628100234.ba9d966a610f
 
 + b info
 project: hello
-version: 0.1.0-a.0.20220726111944.dbb0b209a4f2
+version: 0.1.0-a.0.20230628100234.ba9d966a610f
 summary: hello C++ executable
 url: https://example.org/hello
 src_root: /tmp/hello
@@ -657,15 +659,15 @@ modules: version config test install dist
 
 + bdep sync
 synchronizing:
-  upgrade hello/0.1.0-a.0.20220726111944.dbb0b209a4f2
+  upgrade hello/0.1.0-a.0.20230628100234.ba9d966a610f
 
 + bdep status
-hello configured 0.1.0-a.0.20220726111944.dbb0b209a4f2
-[master 33e97d9] Another commit
+hello configured 0.1.0-a.0.20230628100234.ba9d966a610f
+[master be5bffa] Another commit
  1 file changed, 1 insertion(+)
 
 + bdep status
-hello configured 0.1.0-a.0.20220726111944.dbb0b209a4f2 available 0.1.0-a.0.20220726111948.33e97d934d6d
+hello configured 0.1.0-a.0.20230628100234.ba9d966a610f available 0.1.0-a.0.20230628100238.be5bffafe2fe
 
 + bdep release --alpha --push
 releasing:
@@ -677,9 +679,9 @@ releasing:
   tag:     v0.1.0-a.1
   push:    origin/master
 continue? [y/n] y
-[master 76c861c] Release version 0.1.0-a.1
+[master ed894b0] Release version 0.1.0-a.1
  1 file changed, 1 insertion(+), 1 deletion(-)
-[master cc09a1c] Change version to 0.1.0-a.1.z
+[master 2bd66ae] Change version to 0.1.0-a.1.z
  1 file changed, 1 insertion(+), 1 deletion(-)
 
 + bdep release --no-open --push
@@ -691,14 +693,14 @@ releasing:
   tag:     v0.1.0
   push:    origin/master
 continue? [y/n] y
-[master acf02b4] Release version 0.1.0
+[master 2cc1068] Release version 0.1.0
  1 file changed, 1 insertion(+), 1 deletion(-)
 
-+ bdep publish --simulate success
++ bdep publish --simulate success --repository https://stage.build2.org
 synchronizing:
   upgrade hello/0.1.0
 publishing:
-  to:      https://cppget.org
+  to:      https://stage.build2.org
   as:      Boris Kolpackov <boris@codesynthesis.com>
   package: hello
   version: 0.1.0
@@ -707,13 +709,12 @@ publishing:
   control: https://github.com/boris-kolpackov/hello.git
 warning: publishing using staged build2 toolchain
 continue? [y/n] y
-remote:
+remote: 
 remote: Create a pull request for 'build2-control' on GitHub by visiting:
 remote:      https://github.com/boris-kolpackov/hello/pull/new/build2-control
-remote:
-Branch 'build2-control' set up to track remote branch 'build2-control' from 'origin'.
-package submission is queued: https://queue.cppget.org/hello/0.1.0
-reference: 1ba1d57aebbb
+remote: 
+package submission is queued: https://queue.stage.build2.org/hello/0.1.0
+reference: 75d918f69585
 
 + bdep release --open --push
 opening:
@@ -723,7 +724,7 @@ opening:
   commit:  yes
   push:    origin/master
 continue? [y/n] y
-[master 2807863] Change version to 0.2.0-a.0.z
+[master 1b709b0] Change version to 0.2.0-a.0.z
  1 file changed, 1 insertion(+), 1 deletion(-)
 
 + bdep new -C hello-gcc @gcc -t exe -l c++ hello cc config.cxx=g++
@@ -732,7 +733,7 @@ created configuration @gcc /tmp/hello-gcc/ 1 target default,forwarded,auto-synch
 synchronizing:
   new hello/0.1.0-a.0.19700101000000
 
-+ bdep init -C ../hello-clang @clang cc config.cxx=clang++-5.0
++ bdep init -C ../hello-clang @clang cc config.cxx=clang++-16
 initializing in project /tmp/hello/
 created configuration @clang /tmp/hello-clang/ 2 target auto-synchronized
 synchronizing:
@@ -766,7 +767,7 @@ libhello
     │   └── root.build
     └── buildfile
 
-5 directories, 17 files
+6 directories, 17 files
 
 + cd libhello
 
@@ -788,17 +789,19 @@ synchronizing:
 synchronizing:
   upgrade hello/0.1.0-a.0.19700101000000#1
 mkdir ../hello-gcc/libhello/fsdir{libhello/}
-version.in ../libhello/libhello/version.hxx.in
+version ../libhello/libhello/in{version} -> ../hello-gcc/libhello/libhello/hxx{version}
 mkdir ../hello-gcc/hello/fsdir{hello/}
 mkdir ../hello-gcc/libhello/tests/fsdir{basics/}
-c++ ../libhello/libhello/cxx{hello}@../hello-gcc/libhello/libhello/
-c++ ../libhello/tests/basics/cxx{driver}@../hello-gcc/libhello/tests/basics/
-c++ hello/cxx{hello}@../hello-gcc/hello/hello/
+c++ ../libhello/tests/basics/cxx{driver} -> ../hello-gcc/libhello/tests/basics/obje{driver}
+c++ ../libhello/libhello/cxx{hello} -> ../hello-gcc/libhello/libhello/objs{hello}
+c++ hello/cxx{hello} -> ../hello-gcc/hello/hello/obje{hello}
 ld ../hello-gcc/libhello/libhello/libs{hello}
 ld ../hello-gcc/hello/hello/exe{hello}
 ld ../hello-gcc/libhello/tests/basics/exe{driver}
+ln ../hello-gcc/hello/hello/exe{hello} -> hello/
+ln ../hello-gcc/libhello/tests/basics/exe{driver} -> ../libhello/tests/basics/
 test ../hello-gcc/libhello/tests/basics/exe{driver}
-test hello/testscript{testscript}@../hello-gcc/hello/hello/ ../hello-gcc/hello/hello/exe{hello}
+test ../hello-gcc/hello/hello/exe{hello} + hello/testscript{testscript}
 
 + bdep new -C hello-gcc @gcc -t exe -l c++ hello cc config.cxx=g++
 created new executable project hello in /tmp/hello/
@@ -808,7 +811,7 @@ synchronizing:
 
 + cd hello
 
-+ bdep init -C ../hello-clang @clang cc config.cxx=clang++-5.0
++ bdep init -C ../hello-clang @clang cc config.cxx=clang++-16
 initializing in project /tmp/hello/
 created configuration @clang /tmp/hello-clang/ 2 target auto-synchronized
 synchronizing:
@@ -841,21 +844,23 @@ synchronizing:
 synchronizing:
   upgrade hello/0.1.0-a.0.19700101000000#2
 mkdir ../hello-gcc/libhello/fsdir{libhello/}
-version.in libhello/libhello/version.hxx.in
-mkdir ../hello-gcc/libhello/tests/fsdir{basics/}
+version libhello/libhello/in{version} -> ../hello-gcc/libhello/libhello/hxx{version}
 mkdir ../hello-gcc/hello/fsdir{hello/}
-c++ hello/hello/cxx{hello}@../hello-gcc/hello/hello/
-c++ libhello/tests/basics/cxx{driver}@../hello-gcc/libhello/tests/basics/
-c++ libhello/libhello/cxx{hello}@../hello-gcc/libhello/libhello/
+mkdir ../hello-gcc/libhello/tests/fsdir{basics/}
+c++ hello/hello/cxx{hello} -> ../hello-gcc/hello/hello/obje{hello}
+c++ libhello/libhello/cxx{hello} -> ../hello-gcc/libhello/libhello/objs{hello}
+c++ libhello/tests/basics/cxx{driver} -> ../hello-gcc/libhello/tests/basics/obje{driver}
 ld ../hello-gcc/libhello/libhello/libs{hello}
 ld ../hello-gcc/hello/hello/exe{hello}
 ld ../hello-gcc/libhello/tests/basics/exe{driver}
+ln ../hello-gcc/hello/hello/exe{hello} -> hello/hello/
+ln ../hello-gcc/libhello/tests/basics/exe{driver} -> libhello/tests/basics/
+test ../hello-gcc/hello/hello/exe{hello} + hello/hello/testscript{testscript}
 test ../hello-gcc/libhello/tests/basics/exe{driver}
-test hello/hello/testscript{testscript}@../hello-gcc/hello/hello/ ../hello-gcc/hello/hello/exe{hello}
 
 + bpkg create -d tools cc config.cxx=g++ config.cc.coptions=-O3 config.install.root=/opt/tools config.install.sudo=sudo config.bin.rpath=/opt/tools/lib
 created new configuration in /tmp/tools/
-  uuid: 37be367a-66c7-4f83-a1a0-22534165fcf4
+  uuid: c835ee18-540c-40ca-a727-977c2cb1fd2d
   type: target
 
 + cd tools
@@ -866,69 +871,69 @@ fetching git:build2.org/hello/hello
 fetching git:build2.org/hello/libhello (prerequisite of git:build2.org/hello/hello)
 fetching git:build2.org/hello/libformat##HEAD (prerequisite of git:build2.org/hello/libhello)
 fetching git:build2.org/hello/libprint##HEAD (prerequisite of git:build2.org/hello/libhello)
-  new libformat/1.0.0+10 (required by libhello)
-  new libprint/1.0.0+10 (required by libhello)
-  new libhello/1.1.0+10 (required by hello)
-  new hello/1.0.0+9
+  new libformat/1.0.0+11 (required by libhello)
+  new libprint/1.0.0+11 (required by libhello)
+  new libhello/1.1.0+11 (required by hello)
+  new hello/1.0.0+10
 continue? [Y/n] y
-checked out libformat/1.0.0+10
-checked out libprint/1.0.0+10
-checked out libhello/1.1.0+10
-checked out hello/1.0.0+9
-configured libformat/1.0.0+10
-configured libprint/1.0.0+10
-configured libhello/1.1.0+10
-configured hello/1.0.0+9
-version.in libprint-1.0.0+10/libprint/version.hxx.in
-version.in libformat-1.0.0+10/libformat/version.hxx.in
-version.in libhello-1.1.0+10/libhello/version.hxx.in
-c++ libformat-1.0.0+10/libformat/cxx{format}
-c++ libprint-1.0.0+10/libprint/cxx{print}
-c++ libhello-1.1.0+10/libhello/cxx{hello}
-c++ hello-1.0.0+9/hello/cxx{hello}
-ld libprint-1.0.0+10/libprint/libs{print}
-ld libformat-1.0.0+10/libformat/libs{format}
-ld libhello-1.1.0+10/libhello/libs{hello}
-ld hello-1.0.0+9/hello/exe{hello}
-updated hello/1.0.0+9
+checked out libformat/1.0.0+11
+checked out libprint/1.0.0+11
+checked out libhello/1.1.0+11
+checked out hello/1.0.0+10
+configured libformat/1.0.0+11
+configured libprint/1.0.0+11
+configured libhello/1.1.0+11
+configured hello/1.0.0+10
+version libprint-1.0.0+11/libprint/in{version} -> libprint-1.0.0+11/libprint/hxx{version}
+version libformat-1.0.0+11/libformat/in{version} -> libformat-1.0.0+11/libformat/hxx{version}
+version libhello-1.1.0+11/libhello/in{version} -> libhello-1.1.0+11/libhello/hxx{version}
+c++ libprint-1.0.0+11/libprint/cxx{print} -> libprint-1.0.0+11/libprint/objs{print}
+c++ libformat-1.0.0+11/libformat/cxx{format} -> libformat-1.0.0+11/libformat/objs{format}
+c++ libhello-1.1.0+11/libhello/cxx{hello} -> libhello-1.1.0+11/libhello/objs{hello}
+c++ hello-1.0.0+10/hello/cxx{hello} -> hello-1.0.0+10/hello/obje{hello}
+ld libprint-1.0.0+11/libprint/libs{print}
+ld libformat-1.0.0+11/libformat/libs{format}
+ld libhello-1.1.0+11/libhello/libs{hello}
+ld hello-1.0.0+10/hello/exe{hello}
+updated hello/1.0.0+10
 
 + bpkg install hello
-pc libformat-1.0.0+10/libformat/pcs{format}
-pc libprint-1.0.0+10/libprint/pcs{print}
-pc libhello-1.1.0+10/libhello/pcs{hello}
-ld libhello-1.1.0+10/libhello/libs{hello}
-ld hello-1.0.0+9/hello/exe{hello}
-install /opt/tools/
-install /opt/tools/include/
-install /opt/tools/include/libhello/
-install libhello-1.1.0+10/libhello/hxx{export}
-install libhello-1.1.0+10/libhello/hxx{hello}
-install /opt/tools/share/
-install /opt/tools/share/doc/
-install /opt/tools/share/doc/libhello/
-install libhello-1.1.0+10/manifest{manifest}
-install libhello-1.1.0+10/libhello/hxx{version}
-install /opt/tools/include/libprint/
-install libprint-1.0.0+10/libprint/hxx{print}
-install libprint-1.0.0+10/libprint/hxx{export}
-install /opt/tools/share/doc/libprint/
-install libprint-1.0.0+10/manifest{manifest}
-install libprint-1.0.0+10/libprint/hxx{version}
-install libprint-1.0.0+10/libprint/libs{print}
-install /opt/tools/include/libformat/
-install libformat-1.0.0+10/libformat/hxx{export}
-install libformat-1.0.0+10/libformat/hxx{format}
-install /opt/tools/share/doc/libformat/
-install libformat-1.0.0+10/manifest{manifest}
-install libformat-1.0.0+10/libformat/hxx{version}
-install libformat-1.0.0+10/libformat/libs{format}
-install libhello-1.1.0+10/libhello/libs{hello}
-install /opt/tools/bin/
-install hello-1.0.0+9/hello/exe{hello}
-install /opt/tools/share/doc/hello/
-install hello-1.0.0+9/doc{README.md}
-install hello-1.0.0+9/manifest{manifest}
-installed hello/1.0.0+9
+pc libformat-1.0.0+11/libformat/libs{format} -> libformat-1.0.0+11/libformat/pcs{format}
+pc libprint-1.0.0+11/libprint/libs{print} -> libprint-1.0.0+11/libprint/pcs{print}
+pc libhello-1.1.0+11/libhello/libs{hello} -> libhello-1.1.0+11/libhello/pcs{hello}
+ld libhello-1.1.0+11/libhello/libs{hello}
+ld hello-1.0.0+10/hello/exe{hello}
+install -d /opt/tools/
+install -d /opt/tools/include/
+install -d /opt/tools/include/libhello/
+install libhello-1.1.0+11/libhello/hxx{export} -> /opt/tools/include/libhello/
+install libhello-1.1.0+11/libhello/hxx{hello} -> /opt/tools/include/libhello/
+install -d /opt/tools/share/
+install -d /opt/tools/share/doc/
+install -d /opt/tools/share/doc/libhello/
+install libhello-1.1.0+11/manifest{manifest} -> /opt/tools/share/doc/libhello/
+install libhello-1.1.0+11/libhello/hxx{version} -> /opt/tools/include/libhello/
+install -d /opt/tools/include/libprint/
+install libprint-1.0.0+11/libprint/hxx{export} -> /opt/tools/include/libprint/
+install libprint-1.0.0+11/libprint/hxx{print} -> /opt/tools/include/libprint/
+install -d /opt/tools/share/doc/libprint/
+install libprint-1.0.0+11/manifest{manifest} -> /opt/tools/share/doc/libprint/
+install libprint-1.0.0+11/libprint/hxx{version} -> /opt/tools/include/libprint/
+install libprint-1.0.0+11/libprint/libs{print} -> /opt/tools/lib/
+install -d /opt/tools/include/libformat/
+install libformat-1.0.0+11/libformat/hxx{export} -> /opt/tools/include/libformat/
+install libformat-1.0.0+11/libformat/hxx{format} -> /opt/tools/include/libformat/
+install -d /opt/tools/share/doc/libformat/
+install libformat-1.0.0+11/manifest{manifest} -> /opt/tools/share/doc/libformat/
+install libformat-1.0.0+11/libformat/hxx{version} -> /opt/tools/include/libformat/
+install libformat-1.0.0+11/libformat/libs{format} -> /opt/tools/lib/
+install libhello-1.1.0+11/libhello/libs{hello} -> /opt/tools/lib/
+install -d /opt/tools/bin/
+install hello-1.0.0+10/hello/exe{hello} -> /opt/tools/bin/
+install -d /opt/tools/share/doc/hello/
+install hello-1.0.0+10/doc{README.md} -> /opt/tools/share/doc/hello/
+install hello-1.0.0+10/manifest{manifest} -> /opt/tools/share/doc/hello/
+installed hello/1.0.0+10
 
 + /opt/tools/bin/hello World
 Hello, World!
@@ -973,40 +978,40 @@ Hello, World!
         └── libprint
             └── manifest
 
-13 directories, 24 files
+14 directories, 24 files
 
 + bpkg uninstall hello
-uninstall hello-1.0.0+9/manifest{manifest}
-uninstall hello-1.0.0+9/doc{README.md}
-uninstall /opt/tools/share/doc/hello/
-uninstall hello-1.0.0+9/hello/exe{hello}
-uninstall /opt/tools/bin/
-uninstall libhello-1.1.0+10/libhello/libs{hello}
-uninstall libformat-1.0.0+10/libformat/libs{format}
-uninstall libformat-1.0.0+10/libformat/hxx{version}
-uninstall libformat-1.0.0+10/manifest{manifest}
-uninstall /opt/tools/share/doc/libformat/
-uninstall libformat-1.0.0+10/libformat/hxx{format}
-uninstall libformat-1.0.0+10/libformat/hxx{export}
-uninstall /opt/tools/include/libformat/
-uninstall libprint-1.0.0+10/libprint/libs{print}
-uninstall libprint-1.0.0+10/libprint/hxx{version}
-uninstall libprint-1.0.0+10/manifest{manifest}
-uninstall /opt/tools/share/doc/libprint/
-uninstall libprint-1.0.0+10/libprint/hxx{export}
-uninstall libprint-1.0.0+10/libprint/hxx{print}
-uninstall /opt/tools/include/libprint/
-uninstall libhello-1.1.0+10/libhello/hxx{version}
-uninstall libhello-1.1.0+10/manifest{manifest}
-uninstall /opt/tools/share/doc/libhello/
-uninstall /opt/tools/share/doc/
-uninstall /opt/tools/share/
-uninstall libhello-1.1.0+10/libhello/hxx{hello}
-uninstall libhello-1.1.0+10/libhello/hxx{export}
-uninstall /opt/tools/include/libhello/
-uninstall /opt/tools/include/
-uninstall /opt/tools/
-uninstalled hello/1.0.0+9
+uninstall hello-1.0.0+10/manifest{manifest} <- /opt/tools/share/doc/hello/
+uninstall hello-1.0.0+10/doc{README.md} <- /opt/tools/share/doc/hello/
+uninstall -d /opt/tools/share/doc/hello/
+uninstall hello-1.0.0+10/hello/exe{hello} <- /opt/tools/bin/
+uninstall -d /opt/tools/bin/
+uninstall libhello-1.1.0+11/libhello/libs{hello} <- /opt/tools/lib/
+uninstall libformat-1.0.0+11/libformat/libs{format} <- /opt/tools/lib/
+uninstall libformat-1.0.0+11/libformat/hxx{version} <- /opt/tools/include/libformat/
+uninstall libformat-1.0.0+11/manifest{manifest} <- /opt/tools/share/doc/libformat/
+uninstall -d /opt/tools/share/doc/libformat/
+uninstall libformat-1.0.0+11/libformat/hxx{format} <- /opt/tools/include/libformat/
+uninstall libformat-1.0.0+11/libformat/hxx{export} <- /opt/tools/include/libformat/
+uninstall -d /opt/tools/include/libformat/
+uninstall libprint-1.0.0+11/libprint/libs{print} <- /opt/tools/lib/
+uninstall libprint-1.0.0+11/libprint/hxx{version} <- /opt/tools/include/libprint/
+uninstall libprint-1.0.0+11/manifest{manifest} <- /opt/tools/share/doc/libprint/
+uninstall -d /opt/tools/share/doc/libprint/
+uninstall libprint-1.0.0+11/libprint/hxx{print} <- /opt/tools/include/libprint/
+uninstall libprint-1.0.0+11/libprint/hxx{export} <- /opt/tools/include/libprint/
+uninstall -d /opt/tools/include/libprint/
+uninstall libhello-1.1.0+11/libhello/hxx{version} <- /opt/tools/include/libhello/
+uninstall libhello-1.1.0+11/manifest{manifest} <- /opt/tools/share/doc/libhello/
+uninstall -d /opt/tools/share/doc/libhello/
+uninstall -d /opt/tools/share/doc/
+uninstall -d /opt/tools/share/
+uninstall libhello-1.1.0+11/libhello/hxx{hello} <- /opt/tools/include/libhello/
+uninstall libhello-1.1.0+11/libhello/hxx{export} <- /opt/tools/include/libhello/
+uninstall -d /opt/tools/include/libhello/
+uninstall -d /opt/tools/include/
+uninstall -d /opt/tools/
+uninstalled hello/1.0.0+10
 
 + bpkg drop hello
 following dependencies were automatically built but will no longer be used:
@@ -1027,3 +1032,5 @@ purged hello
 purged libhello
 purged libformat
 purged libprint
+
+Script done on 2023-06-28 12:03:39+02:00 [COMMAND_EXIT_CODE="0"]
diff --git a/stage-queue b/stage-queue
index e6787f1..a378dd7 100755
--- a/stage-queue
+++ b/stage-queue
@@ -74,9 +74,14 @@ etc/stage-pkg -Q alpha -c -d Qt5 packaging/qt5/Qt5/Qt5Moc \
 
 etc/stage-pkg -Q alpha -c -d Qt6 packaging/qt6/Qt6/Qt6Moc \
                                  packaging/qt6/Qt6/Qt6Rcc \
-                                 packaging/qt6/Qt6/libQt6Core
+                                 packaging/qt6/Qt6/Qt6Uic \
+                                 packaging/qt6/Qt6/libQt6Core \
+				 packaging/qt6/Qt6/libQt6Gui \
+				 packaging/qt6/Qt6/libQt6GuiTests \
+				 packaging/qt6/Qt6/libQt6Widgets \
+				 packaging/qt6/Qt6/libQt6WidgetsTests
 
 # Regenerate repository and publish.
 #
-etc/stage-pkg -Q "" -g --min-bpkg-version 0.15.0
+etc/stage-pkg -Q "" -g --min-bpkg-version 0.16.0
 etc/stage-pkg -Q "" -p
diff --git a/version b/version
index fcec25e..345736c 100755
--- a/version
+++ b/version
@@ -12,15 +12,15 @@ usage="usage: etc/version"
 # NOTE: also update in libbuild2-<module>?
 # NOTE: if upgrade is supported, should be previous release version.
 #
-build2_min=0.15.0-
-bpkg_min=0.15.0-
+build2_min=0.16.0-
+bpkg_min=0.16.0-
 
-ver=0.16.0-a.0.z
-#ver=0.15.0
+#ver=0.17.0-a.0.z
+ver=0.16.0
 mods=(libbutl libbutl.bash libbpkg libbbot bpkg bpkg-util build2)
 
-odb_ver=2.5.0-b.24.z
-#odb_ver=2.5.0-b.25
+#odb_ver=2.5.0-b.26.z
+odb_ver=2.5.0-b.25
 odb_mods=(libodb libodb-sqlite libodb-pgsql)
 
 #xml_ver=1.1.0-b.10.z