Updates for 0.12.0 releasev0.12.0

6 files changed, 238 insertions, 200 deletions

diff --git a/doc/release.cli b/doc/release.cli
index 66eaebd..3f716da 100644
--- a/doc/release.cli
+++ b/doc/release.cli
@@ -31,7 +31,7 @@ and then be queued and published (effectively released) as part of the
 bundle the release of dependencies with the release of \c{build2} to keep
 the process as streamlined as possible.
 
-\N|When unbu ndling the release of a dependency we need to remove its
+\N|When unbundling the release of a dependency we need to remove its
 distribution from \c{etc/stage} and add the pre-distributed packages
 (for example, from \c{public}) to \c{staging/repository/1/}.|
 
@@ -150,7 +150,8 @@ distribution from \c{etc/stage} and add the pre-distributed packages
 \h#doc|Review documentation|
 
   Review the following documentation for (1) sample output changes and (2)
-  still being relevant/making sense.
+  still being relevant/making sense. Also (3) check the \c{NEWS} files for
+  anything new worth mentioning.
 
   \N|Ideally this should be done during development but it's easy to forget.
      Also, check if there is any new documentation that has been added that is
@@ -160,7 +161,7 @@ distribution from \c{etc/stage} and add the pre-distributed packages
 
     \li|Install guide: 1 & 2.|
 
-    \li|Toolchain introduction: 1 & 2 (use \c{intro} script output).|
+    \li|Toolchain introduction: 1, 2 & 3 (use \c{intro} script output for 2).|
 
     \li|Introduction in the build system manual: 1 (uses \c{bdep-new(1)}
         output).|
@@ -232,13 +233,35 @@ distribution from \c{etc/stage} and add the pre-distributed packages
 
   Review \c{staging/0/} and \c{staging/repository/1/} for anything stray.
 
-  Restage with \c{baseutils}/\c{mingw} regeneration:
+  If no upgrade is possible from the previous version, uncomment errors in
+  install scripts (and add a note to restore after the release).
 
-  \
-  etc/stage -b
-  \
+  Restage and upgrade \c{brep} by performing the following steps:
+
+  \ol|
+
+  \li|Disable building of all repositories on \c{stage} by adding the
+      \c{buildable:no} field at the end of each line in \c{loadtab}.|
+
+  \li|Restage with \c{baseutils}/\c{mingw} regeneration:
+
+      \
+      etc/stage -b
+      \
+
+  |
 
-  Upgrade \c{brep} on \c{stage} and sync latest \c{buildtab}s.
+  \li|While build machines are bootstrapping, upgrade \c{brep} on \c{stage},
+      sync latest \c{buildtab}s but do not restart the web server.|
+
+  \li|Once all build machines have bootstrapped, enabling build of all
+      repositories and restart the web server. To check bootstrap progress:
+
+     \
+     ./ls-machines -b stage -c stage -c devel
+     \
+
+  ||
 
   Verify \c{stage} build is clean, nothing is unbuilt.
 
@@ -304,11 +327,15 @@ distribution from \c{etc/stage} and add the pre-distributed packages
 
     \li|Close schema versions in \c{bpkg}, \c{bdep}, and \c{brep}.|
 
-    \li|Change \c{BUILD2_STAGE} in \c{build2/build2/config.hxx.in} to \c{false}.|
+    \li|Change \c{LIBBUILD2_STAGE} in \c{build2/libbuild2/config.hxx.in} to \c{false}.|
 
     \li|If necessary, update minimum \c{build2} and \c{bpkg} version
         requirements in projects generated by \c{bdep-new}. \b{This must be
-        done if created projects use new features.}|
+        done if created projects use new features.}
+
+        \N|Why shouldn't we always do this for simplicity? Maybe because then
+        we cannot run tests using \c{public} services? Also the below upgrade
+        steps will break since there is no continuity.||
 
     \li|Change version by updating (including with new modules and/or new
         dependencies) and then executing:
@@ -319,6 +346,9 @@ distribution from \c{etc/stage} and add the pre-distributed packages
        git -C build2-toolchain commit --amend # \"Change version to X.Y.Z\"
        \
 
+       Note that \c{libbuild2-hello} is independently versioned but may still
+       need to update minimum \c{build2} version requirements (see below).
+
     |
 
     \li|Tag by executing \c{tag.sh\ <version>}.|
@@ -360,13 +390,18 @@ distribution from \c{etc/stage} and add the pre-distributed packages
        BDEP_SYNC=0 b ~/work/build2/builds/gcc7-asan/
        \
 
-    ||
+    |
+
+
+    \li|Update \c{libbuild2-hello} if required.||
 
   Verify key tests pass (in particular, the \c{bdep} tests will now be running
   against \c{public} services):
 
   \
   b test: build2/ bpkg/ bdep/
+  b test: bpkg/ config.bpkg.test.remote=true
+  b test: libbuild2-hello/libbuild2-hello-tests/
   \
 
   \N|We could have queued after this step before preparing
@@ -397,8 +432,8 @@ distribution from \c{etc/stage} and add the pre-distributed packages
     \li|Regenerate documentation in each package inside as well as in
         \c{build2-toolchain} itself.|
 
-    \li|Update ODB by copying relevant files from the previous step (trust
-        me, this is the easy way). Make sure all \c{*-odb.*} are copied!|
+    \li|Update ODB by copying relevant files from the previous step (trust me,
+        this is the easy way for now). Make sure all \c{*-odb.*} are copied!|
 
     \li|Change \c{BUILD2_REPO} in \c{build2-toolchain} build scripts to
     \c{queue}.||
@@ -436,7 +471,8 @@ distribution from \c{etc/stage} and add the pre-distributed packages
 
    If queued package manifests contain new values, then the bpkg-rep-publish
    script will fail to create repository due to unknown manifest values. To
-   resolve this we temporarily add (to \c{crontab}) \c{--ignore-unknown}.
+   resolve this we temporarily add (to \c{crontab}) \c{--ignore-unknown} and
+   make a note to restore.
 
 \h#build-public|Verify queued packages build with \c{public}|
 
@@ -483,17 +519,15 @@ distribution from \c{etc/stage} and add the pre-distributed packages
      \c{queue} builds. As a result, after this update, \c{public} build hosts
      may not have some of the new (or renamed) build machines.|
 
-  Adjust \c{stage} and \c{devel} build host configurations to enable the
-  \c{queue} toolchain. Shift most instances from \c{stage} to \c{queue}
-  in the hardware class-specific configurations. Regenerate affected
-  configurations and reboot build hosts:
+  Adjust \c{stage} and \c{devel} build host configurations (both \c{*-config}
+  and hardware classes) to enable the \c{queue} toolchain. Shift most
+  instances from \c{stage} to \c{queue} in the hardware class-specific
+  configurations. Regenerate affected configurations and reboot build hosts:
 
   \
   cd private/buildos/
 
-  ./gen-config stage <class>
-  ./gen-config devel <class>
-
+  ./regen
   ./po-hosts -r -c stage -c devel
   \
 
@@ -550,6 +584,8 @@ distribution from \c{etc/stage} and add the pre-distributed packages
   ~/work/build2/buildos/remove-machine <host> <machine>
   \
 
+  Then move now legacy machines to the \"legacy\" build host.
+
   Also review deployed machines against the latest available versions and
   upgrade those that are not the latest:
 
@@ -591,7 +627,8 @@ distribution from \c{etc/stage} and add the pre-distributed packages
 
   Note that once published, the existing install instructions/download
   links are no longer usable, so do not linger (in fact, may make sense
-  to update Download and Install pages before publishing packages).
+  to update Download and Install pages before publishing packages and
+  sync only them immediately after).
 
 \h#start-public|Start \c{public} builds|
 
diff --git a/git/modules b/git/modules
index d138b98..d1821ff 100644
--- a/git/modules
+++ b/git/modules
@@ -11,7 +11,8 @@ bdep              \
 brep              \
 libbbot           \
 bbot              \
-libstd-modules"
+libstd-modules    \
+libbuild2-hello"
 
 # During release it is useful to exclude some of these so can do mass
 # commits (like version updates).
@@ -26,7 +27,8 @@ modules="$modules openssl-agent"
 modules="$modules etc"
 modules="$modules private"
 
-# We don't tag git/, and etc/, private/, build2-toolchain/ are tagged manually.
+# We don't tag git/, libbuild2-hello.
+# And etc/, private/, build2-toolchain/ are tagged manually.
 #
 tag_modules="     \
 libbutl           \
@@ -60,6 +62,7 @@ brep              \
 libbbot           \
 bbot              \
 libstd-modules    \
+libbuild2-hello   \
 buildos           \
 msvc-linux        \
 openssl-agent"
diff --git a/intro2-tldr.orig b/intro2-tldr.orig
index 434503b..7f3e9a0 100644
--- a/intro2-tldr.orig
+++ b/intro2-tldr.orig
@@ -1,6 +1,6 @@
 created new executable project hello in /tmp/hello.git/
-[master (root-commit) db9119c] first commit
- 12 files changed, 103 insertions(+)
+[master (root-commit) 2fe4497] first commit
+ 12 files changed, 107 insertions(+)
  create mode 100644 .gitignore
  create mode 100644 README.md
  create mode 100644 build/.gitignore
@@ -59,8 +59,8 @@ synchronizing /tmp/hello-gcc/:
   upgrade hello/0.1.0#1
 distributing libhello/1.0.0+4
 version.in ../hello-gcc/libhello-1.0.0+4/libhello/version.hxx.in
-c++ hello/cxx{hello}@../hello-gcc/hello/hello/
 c++ ../hello-gcc/libhello-1.0.0+4/libhello/cxx{hello}
+c++ hello/cxx{hello}@../hello-gcc/hello/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/
@@ -78,22 +78,22 @@ fetching from https://git.build2.org/hello/libprint.git
 
 + bdep status -i
 hello configured 0.1.0#1
-  libhello ^1.0.0 configured 1.0.0+4 available [1.1.0+4]
+  libhello ^1.0.0 configured 1.0.0+4 available [1.1.0+5] [1.0.0+5]
 
 + bdep sync libhello
 synchronizing:
-  new libformat/1.0.0+4 (required by libhello)
-  new libprint/1.0.0+4 (required by libhello)
-  upgrade libhello/1.1.0+4
+  new libformat/1.0.0+5 (required by libhello)
+  new libprint/1.0.0+5 (required by libhello)
+  upgrade libhello/1.1.0+5
   reconfigure hello/0.1.0#1
-distributing libformat/1.0.0+4
-distributing libprint/1.0.0+4
-distributing libhello/1.1.0+4
+distributing libformat/1.0.0+5
+distributing libprint/1.0.0+5
+distributing libhello/1.1.0+5
 
 + bdep sync libhello/1.0.0
 synchronizing:
-  drop libprint/1.0.0+4 (unused)
-  drop libformat/1.0.0+4 (unused)
-  downgrade libhello/1.0.0+4
+  drop libprint/1.0.0+5 (unused)
+  drop libformat/1.0.0+5 (unused)
+  downgrade libhello/1.0.0+5
   reconfigure hello/0.1.0#1
-distributing libhello/1.0.0+4
+distributing libhello/1.0.0+5
diff --git a/intro2-tour b/intro2-tour
index ab6fa64..4adbac7 100755
--- a/intro2-tour
+++ b/intro2-tour
@@ -113,9 +113,7 @@ cat <<EOF >>repositories.manifest
 role: prerequisite
 location: $repo
 EOF
-cat <<EOF >>manifest
-depends: libhello ^1.0.0
-EOF
+sed -i -re 's/^#depends: libhello/depends: libhello/' manifest # ^1.0.0
 sed -i -re 's/^#import/import/' hello/buildfile
 cat <<EOF >hello/hello.cxx
 #include <iostream>
diff --git a/intro2-tour.orig b/intro2-tour.orig
index c87a525..f3b1a52 100644
--- a/intro2-tour.orig
+++ b/intro2-tour.orig
@@ -64,8 +64,8 @@ license: proprietary
 description-file: README.md
 url: https://example.org/hello
 email: boris@codesynthesis.com
-depends: * build2 >= 0.10.0
-depends: * bpkg >= 0.10.0
+depends: * build2 >= 0.11.0
+depends: * bpkg >= 0.11.0
 #depends: libhello ^1.0.0
 
 + bdep init -C ../hello-gcc @gcc cc config.cxx=g++
@@ -80,13 +80,13 @@ created configuration @clang /tmp/hello-clang/ 2 auto-synchronized
 synchronizing:
   new hello/0.1.0-a.0.19700101000000
 
-+ ls -d -1 ../hello ../hello2 ../hello2.tar.gz ../hello-clang ../hello-gcc ../hello.git
++ ls -d -1 ../hello ../hello1 ../hello-clang ../hello.cxx ../hello-gcc ../hello.o
 ../hello
-../hello2
-../hello2.tar.gz
+../hello1
 ../hello-clang
+../hello.cxx
 ../hello-gcc
-../hello.git
+../hello.o
 
 + bdep init -C ../hello-vc-debug @debug cc config.cxx=cl-15 config.cc.coptions=/MDd /Z7 config.cc.loptions=/DEBUG
 initializing in project /tmp/hello/
@@ -187,8 +187,8 @@ Hello, Windows!
 + git add .
 
 + git commit -m Initial implementation
-[master (root-commit) d81cc12] Initial implementation
- 12 files changed, 103 insertions(+)
+[master (root-commit) 83b57ed] Initial implementation
+ 12 files changed, 107 insertions(+)
  create mode 100644 .gitignore
  create mode 100644 README.md
  create mode 100644 build/.gitignore
@@ -206,20 +206,20 @@ Hello, Windows!
 
 + git push origin master -u --force
 To github.com:boris-kolpackov/hello.git
- + 609f764...d81cc12 master -> master (forced update)
+ + 7f613af...83b57ed master -> master (forced update)
 Branch 'master' set up to track remote branch 'master' from 'origin'.
 
 + bdep ci --simulate success
 submitting:
   to:      https://ci.stage.build2.org
-  in:      https://github.com/boris-kolpackov/hello.git#master@d81cc12cbafdfa7c052964932c174d43e23c00f7
+  in:      https://github.com/boris-kolpackov/hello.git#master@83b57eddde8485a4f4aea49c71f5d4382cb58f85
   package: hello
-  version: 0.1.0-a.0.20190608073910.d81cc12cbafd
+  version: 0.1.0-a.0.20191118060612.83b57eddde84
 continue? [y/n]   % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                  Dload  Upload   Total   Spent    Left  Speed
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100   812  100   163  100   649    105    419  0:00:01  0:00:01 --:--:--   419
-CI request is queued: https://ci.stage.build2.org/@bdf6dd05-d0a4-4a0e-b3c4-8dfb8c50a8cd
-reference: bdf6dd05-d0a4-4a0e-b3c4-8dfb8c50a8cd
+
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100   812  100   163  100   649    106    423  0:00:01  0:00:01 --:--:--   423
+CI request is queued: https://ci.stage.build2.org/@613d3e21-151c-4c22-ae53-bba54f9eb6c4
+reference: 613d3e21-151c-4c22-ae53-bba54f9eb6c4
 
 + bdep deinit @gcc @clang
 deinitializing in project /tmp/hello/
@@ -250,8 +250,8 @@ 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/1.1.0+4
-libhello/1.0.0+4
+libhello/1.1.0+5
+libhello/1.0.0+5
 
 + bpkg rep-info https://git.build2.org/hello/libhello.git#HEAD
 querying https://git.build2.org/hello/libhello.git
@@ -260,7 +260,7 @@ git:build2.org/hello/libhello#HEAD https://git.build2.org/hello/libhello.git#HEA
 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+4
+libhello/1.1.0+5
 
 + bdep status
 fetching pkg:stage.build2.org (prerequisite of dir:/tmp/hello)
@@ -275,7 +275,7 @@ synchronizing:
   new libhello/1.0.0+4 (required by hello)
   upgrade hello/0.1.0-a.0.19700101000000#1
 
-     0K ...                                                   100% 88.9M=0s
+     0K ...                                                   100% 78.7M=0s
 + b
 synchronizing /tmp/hello-gcc/:
   upgrade hello/0.1.0-a.0.19700101000000#2
@@ -304,13 +304,13 @@ synchronizing:
   new libhello/1.0.0+4 (required by hello)
   upgrade hello/0.1.0-a.0.19700101000000#1
 
-     0K ...                                                   100% 98.5M=0s
+     0K ...                                                   100% 81.6M=0s
 + bdep test -ai
 in configuration @gcc:
 c++ ../hello-gcc/libhello-1.0.0+4/tests/basics/cxx{driver}
 ld ../hello-gcc/libhello-1.0.0+4/tests/basics/exe{driver}
-test ../hello-gcc/libhello-1.0.0+4/tests/basics/exe{driver}
 test hello/testscript{testscript}@../hello-gcc/hello/hello/ ../hello-gcc/hello/hello/exe{hello}
+test ../hello-gcc/libhello-1.0.0+4/tests/basics/exe{driver}
 
 in configuration @clang:
 mkdir ../hello-clang/hello/fsdir{hello/}
@@ -335,7 +335,7 @@ synchronizing:
   new libhello/1.0.0+4 (required by hello)
   upgrade hello/0.1.0-a.0.19700101000000#4
 
-     0K ...                                                   100%  100M=0s
+     0K ...                                                   100% 89.3M=0s
 + bdep fetch
 fetching git:build2.org/hello/libhello (prerequisite of dir:/tmp/hello)
 querying https://git.build2.org/hello/libhello.git
@@ -349,34 +349,34 @@ fetching from https://git.build2.org/hello/libprint.git
 fetching pkg:stage.build2.org (prerequisite of dir:/tmp/hello)
 
 + bdep status libhello
-libhello configured 1.0.0+4 available [1.1.0+4]
+libhello configured 1.0.0+4 available [1.1.0+5] [1.0.0+5]
 
 + bdep sync libhello
 synchronizing:
-  new libformat/1.0.0+4 (required by libhello)
-  new libprint/1.0.0+4 (required by libhello)
-  upgrade libhello/1.1.0+4
+  new libformat/1.0.0+5 (required by libhello)
+  new libprint/1.0.0+5 (required by libhello)
+  upgrade libhello/1.1.0+5
   reconfigure hello/0.1.0-a.0.19700101000000#4
-distributing libformat/1.0.0+4
-distributing libprint/1.0.0+4
-distributing libhello/1.1.0+4
+distributing libformat/1.0.0+5
+distributing libprint/1.0.0+5
+distributing libhello/1.1.0+5
 
 + bdep status -r
 hello configured 0.1.0-a.0.19700101000000#4
-  libhello ^1.0.0 configured 1.1.0+4
-    libformat ^1.0.0 configured 1.0.0+4
-    libprint ^1.0.0 configured 1.0.0+4
+  libhello ^1.0.0 configured 1.1.0+5
+    libformat ^1.0.0 configured 1.0.0+5
+    libprint ^1.0.0 configured 1.0.0+5
 
 + bdep status -o libhello
-libhello configured 1.1.0+4 available (1.1.0+4) [1.0.0+4]
+libhello configured 1.1.0+5 available (1.1.0+5) [1.0.0+5] [1.0.0+4]
 
 + bdep sync libhello/1.0.0
 synchronizing:
-  drop libprint/1.0.0+4 (unused)
-  drop libformat/1.0.0+4 (unused)
-  downgrade libhello/1.0.0+4
+  drop libprint/1.0.0+5 (unused)
+  drop libformat/1.0.0+5 (unused)
+  downgrade libhello/1.0.0+5
   reconfigure hello/0.1.0-a.0.19700101000000#4
-distributing libhello/1.0.0+4
+distributing libhello/1.0.0+5
 
 + bdep new -C libextra-gcc -t lib -l c++ libextra cc config.cxx=g++
 created new library project libextra in /tmp/libextra/
@@ -441,48 +441,48 @@ querying https://git.build2.org/hello/libprint.git
 fetching from https://git.build2.org/hello/libprint.git
 fetching pkg:stage.build2.org (prerequisite of dir:/tmp/hello)
 synchronizing:
-  new libformat/1.0.0+4 (required by libhello)
-  new libprint/1.0.0+4 (required by libhello)
-  new libhello/1.1.0+4 (required by hello)
+  new libformat/1.0.0+5 (required by libhello)
+  new libprint/1.0.0+5 (required by libhello)
+  new libhello/1.1.0+5 (required by hello)
   new hello/0.1.0-a.0.19700101000000
-distributing libformat/1.0.0+4
-distributing libprint/1.0.0+4
-distributing libhello/1.1.0+4
+distributing libformat/1.0.0+5
+distributing libprint/1.0.0+5
+distributing libhello/1.1.0+5
 
 + b test: ../hello-gcc-1/
+version.in ../hello-gcc-1/libprint-1.0.0+5/libprint/version.hxx.in
 mkdir ../hello-gcc-1/hello/fsdir{hello/}
-version.in ../hello-gcc-1/libprint-1.0.0+4/libprint/version.hxx.in
-version.in ../hello-gcc-1/libformat-1.0.0+4/libformat/version.hxx.in
-version.in ../hello-gcc-1/libhello-1.1.0+4/libhello/version.hxx.in
-c++ ../hello-gcc-1/libprint-1.0.0+4/libprint/cxx{print}
-c++ ../hello-gcc-1/libprint-1.0.0+4/tests/basics/cxx{driver}
-c++ ../hello-gcc-1/libformat-1.0.0+4/tests/basics/cxx{driver}
-c++ ../hello-gcc-1/libhello-1.1.0+4/libhello/cxx{hello}
-c++ ../hello-gcc-1/libformat-1.0.0+4/libformat/cxx{format}
-c++ ../hello-gcc-1/libhello-1.1.0+4/tests/basics/cxx{driver}
+version.in ../hello-gcc-1/libformat-1.0.0+5/libformat/version.hxx.in
+version.in ../hello-gcc-1/libhello-1.1.0+5/libhello/version.hxx.in
+c++ ../hello-gcc-1/libprint-1.0.0+5/tests/basics/cxx{driver}
+c++ ../hello-gcc-1/libprint-1.0.0+5/libprint/cxx{print}
+c++ ../hello-gcc-1/libformat-1.0.0+5/tests/basics/cxx{driver}
+c++ ../hello-gcc-1/libhello-1.1.0+5/libhello/cxx{hello}
+c++ ../hello-gcc-1/libhello-1.1.0+5/tests/basics/cxx{driver}
 c++ hello/cxx{hello}@../hello-gcc-1/hello/hello/
-ld ../hello-gcc-1/libprint-1.0.0+4/libprint/libs{print}
-ld ../hello-gcc-1/libprint-1.0.0+4/tests/basics/exe{driver}
-ld ../hello-gcc-1/libformat-1.0.0+4/libformat/libs{format}
-ld ../hello-gcc-1/libformat-1.0.0+4/tests/basics/exe{driver}
-ld ../hello-gcc-1/libhello-1.1.0+4/libhello/libs{hello}
-ld ../hello-gcc-1/libhello-1.1.0+4/tests/basics/exe{driver}
+c++ ../hello-gcc-1/libformat-1.0.0+5/libformat/cxx{format}
+ld ../hello-gcc-1/libprint-1.0.0+5/libprint/libs{print}
+ld ../hello-gcc-1/libprint-1.0.0+5/tests/basics/exe{driver}
+ld ../hello-gcc-1/libformat-1.0.0+5/libformat/libs{format}
+ld ../hello-gcc-1/libformat-1.0.0+5/tests/basics/exe{driver}
+ld ../hello-gcc-1/libhello-1.1.0+5/libhello/libs{hello}
+ld ../hello-gcc-1/libhello-1.1.0+5/tests/basics/exe{driver}
 ld ../hello-gcc-1/hello/hello/exe{hello}
+test ../hello-gcc-1/libprint-1.0.0+5/tests/basics/exe{driver}
 test hello/testscript{testscript}@../hello-gcc-1/hello/hello/ ../hello-gcc-1/hello/hello/exe{hello}
-test ../hello-gcc-1/libhello-1.1.0+4/tests/basics/exe{driver}
-test ../hello-gcc-1/libformat-1.0.0+4/tests/basics/exe{driver}
-test ../hello-gcc-1/libprint-1.0.0+4/tests/basics/exe{driver}
+test ../hello-gcc-1/libhello-1.1.0+5/tests/basics/exe{driver}
+test ../hello-gcc-1/libformat-1.0.0+5/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+4/build/config.build
-save ../hello-gcc/libhello-1.0.0+4/tests/build/config.build
+save ../hello-gcc/libhello-1.0.0+5/build/config.build
+save ../hello-gcc/libhello-1.0.0+5/tests/build/config.build
 
 + b test
-c++ ../hello-gcc/libhello-1.0.0+4/libhello/cxx{hello}
+c++ ../hello-gcc/libhello-1.0.0+5/libhello/cxx{hello}
 c++ hello/cxx{hello}@../hello-gcc/hello/hello/
-ld ../hello-gcc/libhello-1.0.0+4/libhello/libs{hello}
+ld ../hello-gcc/libhello-1.0.0+5/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}
@@ -503,8 +503,8 @@ 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) 29640f2] Initial implementation
- 12 files changed, 103 insertions(+)
+[master (root-commit) e92103a] Initial implementation
+ 12 files changed, 107 insertions(+)
  create mode 100644 .gitignore
  create mode 100644 README.md
  create mode 100644 build/.gitignore
@@ -518,15 +518,15 @@ To github.com:boris-kolpackov/hello.git
  create mode 100644 manifest
  create mode 100644 repositories.manifest
 To github.com:boris-kolpackov/hello.git
- + d81cc12...29640f2 master -> master (forced update)
+ + 83b57ed...e92103a master -> master (forced update)
 Branch 'master' set up to track remote branch 'master' from 'origin'.
 
 + bdep status
-hello configured 0.1.0-a.0.19700101000000 available 0.1.0-a.0.20190608074122.29640f28aadc
+hello configured 0.1.0-a.0.19700101000000 available 0.1.0-a.0.20191118060910.e92103a6ea2d
 
 + b info
 project: hello
-version: 0.1.0-a.0.20190608074122.29640f28aadc
+version: 0.1.0-a.0.20191118060910.e92103a6ea2d
 summary: hello C++ executable
 url: https://example.org/hello
 src_root: /tmp/hello/
@@ -538,15 +538,15 @@ meta-operations: perform configure disfigure dist info
 
 + bdep sync
 synchronizing:
-  upgrade hello/0.1.0-a.0.20190608074122.29640f28aadc
+  upgrade hello/0.1.0-a.0.20191118060910.e92103a6ea2d
 
 + bdep status
-hello configured 0.1.0-a.0.20190608074122.29640f28aadc
-[master 19fd457] Another commit
+hello configured 0.1.0-a.0.20191118060910.e92103a6ea2d
+[master f720ebb] Another commit
  1 file changed, 1 insertion(+)
 
 + bdep status
-hello configured 0.1.0-a.0.20190608074122.29640f28aadc available 0.1.0-a.0.20190608074126.19fd45772762
+hello configured 0.1.0-a.0.20191118060910.e92103a6ea2d available 0.1.0-a.0.20191118060914.f720ebb7ae8e
 
 + bdep release --alpha --push
 releasing:
@@ -557,9 +557,9 @@ releasing:
   commit:  yes
   tag:     v0.1.0-a.1
   push:    origin/master
-continue? [y/n] [master ef611b3] Release version 0.1.0-a.1
+continue? [y/n] [master b7765c6] Release version 0.1.0-a.1
  1 file changed, 1 insertion(+), 1 deletion(-)
-[master 5fccf16] Change version to 0.1.0-a.1.z
+[master 0833250] Change version to 0.1.0-a.1.z
  1 file changed, 1 insertion(+), 1 deletion(-)
 pushing branch master, tag v0.1.0-a.1
 
@@ -571,7 +571,7 @@ releasing:
   commit:  yes
   tag:     v0.1.0
   push:    origin/master
-continue? [y/n] [master e5bcd1e] Release version 0.1.0
+continue? [y/n] [master 0fadfca] Release version 0.1.0
  1 file changed, 1 insertion(+), 1 deletion(-)
 pushing branch master, tag v0.1.0
 
@@ -596,9 +596,9 @@ Branch 'build2-control' set up to track remote branch 'build2-control' from 'ori
 submitting hello-0.1.0.tar.gz
   % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                  Dload  Upload   Total   Spent    Left  Speed
-
  0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0
  0     0    0     0    0     0      0      0 --:--:--  0:00:01 --:--:--     0
100  1981    0     0  100  1981      0    867  0:00:02  0:00:02 --:--:--   868
100  2097  100   116  100  1981     48    832  0:00:02  0:00:02 --:--:--   832
+
  0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0
  0     0    0     0    0     0      0      0 --:--:--  0:00:01 --:--:--     0
100  1947    0     0  100  1947      0    876  0:00:02  0:00:02 --:--:--   876
100  2063  100   116  100  1947     50    853  0:00:02  0:00:02 --:--:--   853
 package submission is queued: https://queue.cppget.org/hello/0.1.0
-reference: 6e90dc4ba2cc
+reference: 2f3bfe0b35f3
 
 + bdep release --open --push
 opening:
@@ -607,7 +607,7 @@ opening:
   open:    0.2.0-a.0.z
   commit:  yes
   push:    origin/master
-continue? [y/n] [master 3beffd1] Change version to 0.2.0-a.0.z
+continue? [y/n] [master d8fce33] Change version to 0.2.0-a.0.z
  1 file changed, 1 insertion(+), 1 deletion(-)
 pushing branch master
 
@@ -649,12 +649,12 @@ mkdir ../hello-gcc/libhello/fsdir{libhello/}
 mkdir ../hello-gcc/hello/fsdir{hello/}
 mkdir ../hello-gcc/libhello/tests/fsdir{basics/}
 version.in ../libhello/libhello/version.hxx.in
-c++ ../libhello/libhello/cxx{hello}@../hello-gcc/libhello/libhello/
 c++ hello/cxx{hello}@../hello-gcc/hello/hello/
+c++ ../libhello/libhello/cxx{hello}@../hello-gcc/libhello/libhello/
 c++ ../libhello/tests/basics/cxx{driver}@../hello-gcc/libhello/tests/basics/
 ld ../hello-gcc/libhello/libhello/libs{hello}
-ld ../hello-gcc/libhello/tests/basics/exe{driver}
 ld ../hello-gcc/hello/hello/exe{hello}
+ld ../hello-gcc/libhello/tests/basics/exe{driver}
 test hello/testscript{testscript}@../hello-gcc/hello/hello/ ../hello-gcc/hello/hello/exe{hello}
 test ../hello-gcc/libhello/tests/basics/exe{driver}
 
@@ -699,17 +699,17 @@ synchronizing:
 synchronizing:
   upgrade hello/0.1.0-a.0.19700101000000#2
 mkdir ../hello-gcc/libhello/fsdir{libhello/}
-mkdir ../hello-gcc/hello/fsdir{hello/}
 mkdir ../hello-gcc/libhello/tests/fsdir{basics/}
+mkdir ../hello-gcc/hello/fsdir{hello/}
 version.in libhello/libhello/version.hxx.in
-c++ libhello/libhello/cxx{hello}@../hello-gcc/libhello/libhello/
 c++ hello/hello/cxx{hello}@../hello-gcc/hello/hello/
+c++ libhello/libhello/cxx{hello}@../hello-gcc/libhello/libhello/
 c++ libhello/tests/basics/cxx{driver}@../hello-gcc/libhello/tests/basics/
 ld ../hello-gcc/libhello/libhello/libs{hello}
-ld ../hello-gcc/hello/hello/exe{hello}
 ld ../hello-gcc/libhello/tests/basics/exe{driver}
-test hello/hello/testscript{testscript}@../hello-gcc/hello/hello/ ../hello-gcc/hello/hello/exe{hello}
+ld ../hello-gcc/hello/hello/exe{hello}
 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/
@@ -730,68 +730,68 @@ fetching from https://git.build2.org/hello/libformat.git
 fetching git:build2.org/hello/libprint##HEAD (prerequisite of git:build2.org/hello/libhello)
 querying https://git.build2.org/hello/libprint.git
 fetching from https://git.build2.org/hello/libprint.git
-  new libformat/1.0.0+4 (required by libhello)
-  new libprint/1.0.0+4 (required by libhello)
-  new libhello/1.1.0+4 (required by hello)
-  new hello/1.0.0+3
-continue? [Y/n] distributing libformat/1.0.0+4
-checked out libformat/1.0.0+4
-configured libformat/1.0.0+4
-distributing libprint/1.0.0+4
-checked out libprint/1.0.0+4
-configured libprint/1.0.0+4
-distributing libhello/1.1.0+4
-checked out libhello/1.1.0+4
-configured libhello/1.1.0+4
-distributing hello/1.0.0+3
-checked out hello/1.0.0+3
-configured hello/1.0.0+3
-version.in libprint-1.0.0+4/libprint/version.hxx.in
-c++ libprint-1.0.0+4/libprint/cxx{print}
-version.in libhello-1.1.0+4/libhello/version.hxx.in
-c++ libformat-1.0.0+4/libformat/cxx{format}
-version.in libformat-1.0.0+4/libformat/version.hxx.in
-c++ libhello-1.1.0+4/libhello/cxx{hello}
-c++ hello-1.0.0+3/hello/cxx{hello}
-ld libprint-1.0.0+4/libprint/libs{print}
-ld libformat-1.0.0+4/libformat/libs{format}
-ld libhello-1.1.0+4/libhello/libs{hello}
-ld hello-1.0.0+3/hello/exe{hello}
-updated hello/1.0.0+3
+  new libformat/1.0.0+5 (required by libhello)
+  new libprint/1.0.0+5 (required by libhello)
+  new libhello/1.1.0+5 (required by hello)
+  new hello/1.0.0+4
+continue? [Y/n] distributing libformat/1.0.0+5
+checked out libformat/1.0.0+5
+configured libformat/1.0.0+5
+distributing libprint/1.0.0+5
+checked out libprint/1.0.0+5
+configured libprint/1.0.0+5
+distributing libhello/1.1.0+5
+checked out libhello/1.1.0+5
+configured libhello/1.1.0+5
+distributing hello/1.0.0+4
+checked out hello/1.0.0+4
+configured hello/1.0.0+4
+version.in libhello-1.1.0+5/libhello/version.hxx.in
+version.in libprint-1.0.0+5/libprint/version.hxx.in
+version.in libformat-1.0.0+5/libformat/version.hxx.in
+c++ libprint-1.0.0+5/libprint/cxx{print}
+c++ libhello-1.1.0+5/libhello/cxx{hello}
+c++ hello-1.0.0+4/hello/cxx{hello}
+c++ libformat-1.0.0+5/libformat/cxx{format}
+ld libprint-1.0.0+5/libprint/libs{print}
+ld libformat-1.0.0+5/libformat/libs{format}
+ld libhello-1.1.0+5/libhello/libs{hello}
+ld hello-1.0.0+4/hello/exe{hello}
+updated hello/1.0.0+4
 
 + bpkg install hello
-ld libhello-1.1.0+4/libhello/libs{hello}
-ld hello-1.0.0+3/hello/exe{hello}
+ld libhello-1.1.0+5/libhello/libs{hello}
+ld hello-1.0.0+4/hello/exe{hello}
 install /opt/tools/
 install /opt/tools/include/
 install /opt/tools/include/libhello/
-install libhello-1.1.0+4/libhello/hxx{export}
-install libhello-1.1.0+4/libhello/hxx{hello}
+install libhello-1.1.0+5/libhello/hxx{export}
+install libhello-1.1.0+5/libhello/hxx{hello}
 install /opt/tools/share/
 install /opt/tools/share/doc/
 install /opt/tools/share/doc/libhello/
-install libhello-1.1.0+4/manifest{manifest}
-install libhello-1.1.0+4/libhello/hxx{version}
+install libhello-1.1.0+5/manifest{manifest}
+install libhello-1.1.0+5/libhello/hxx{version}
 install /opt/tools/include/libprint/
-install libprint-1.0.0+4/libprint/hxx{print}
-install libprint-1.0.0+4/libprint/hxx{export}
+install libprint-1.0.0+5/libprint/hxx{print}
+install libprint-1.0.0+5/libprint/hxx{export}
 install /opt/tools/share/doc/libprint/
-install libprint-1.0.0+4/manifest{manifest}
-install libprint-1.0.0+4/libprint/hxx{version}
-install libprint-1.0.0+4/libprint/libs{print}
+install libprint-1.0.0+5/manifest{manifest}
+install libprint-1.0.0+5/libprint/hxx{version}
+install libprint-1.0.0+5/libprint/libs{print}
 install /opt/tools/include/libformat/
-install libformat-1.0.0+4/libformat/hxx{export}
-install libformat-1.0.0+4/libformat/hxx{format}
+install libformat-1.0.0+5/libformat/hxx{export}
+install libformat-1.0.0+5/libformat/hxx{format}
 install /opt/tools/share/doc/libformat/
-install libformat-1.0.0+4/manifest{manifest}
-install libformat-1.0.0+4/libformat/hxx{version}
-install libformat-1.0.0+4/libformat/libs{format}
-install libhello-1.1.0+4/libhello/libs{hello}
+install libformat-1.0.0+5/manifest{manifest}
+install libformat-1.0.0+5/libformat/hxx{version}
+install libformat-1.0.0+5/libformat/libs{format}
+install libhello-1.1.0+5/libhello/libs{hello}
 install /opt/tools/bin/
-install hello-1.0.0+3/hello/exe{hello}
+install hello-1.0.0+4/hello/exe{hello}
 install /opt/tools/share/doc/hello/
-install hello-1.0.0+3/manifest{manifest}
-installed hello/1.0.0+3
+install hello-1.0.0+4/manifest{manifest}
+installed hello/1.0.0+4
 
 + /opt/tools/bin/hello World
 Hello, World!
@@ -838,36 +838,36 @@ Hello, World!
 13 directories, 23 files
 
 + bpkg uninstall hello
-uninstall hello-1.0.0+3/manifest{manifest}
+uninstall hello-1.0.0+4/manifest{manifest}
 uninstall /opt/tools/share/doc/hello/
-uninstall hello-1.0.0+3/hello/exe{hello}
+uninstall hello-1.0.0+4/hello/exe{hello}
 uninstall /opt/tools/bin/
-uninstall libhello-1.1.0+4/libhello/libs{hello}
-uninstall libformat-1.0.0+4/libformat/libs{format}
-uninstall libformat-1.0.0+4/libformat/hxx{version}
-uninstall libformat-1.0.0+4/manifest{manifest}
+uninstall libhello-1.1.0+5/libhello/libs{hello}
+uninstall libformat-1.0.0+5/libformat/libs{format}
+uninstall libformat-1.0.0+5/libformat/hxx{version}
+uninstall libformat-1.0.0+5/manifest{manifest}
 uninstall /opt/tools/share/doc/libformat/
-uninstall libformat-1.0.0+4/libformat/hxx{format}
-uninstall libformat-1.0.0+4/libformat/hxx{export}
+uninstall libformat-1.0.0+5/libformat/hxx{format}
+uninstall libformat-1.0.0+5/libformat/hxx{export}
 uninstall /opt/tools/include/libformat/
-uninstall libprint-1.0.0+4/libprint/libs{print}
-uninstall libprint-1.0.0+4/libprint/hxx{version}
-uninstall libprint-1.0.0+4/manifest{manifest}
+uninstall libprint-1.0.0+5/libprint/libs{print}
+uninstall libprint-1.0.0+5/libprint/hxx{version}
+uninstall libprint-1.0.0+5/manifest{manifest}
 uninstall /opt/tools/share/doc/libprint/
-uninstall libprint-1.0.0+4/libprint/hxx{export}
-uninstall libprint-1.0.0+4/libprint/hxx{print}
+uninstall libprint-1.0.0+5/libprint/hxx{export}
+uninstall libprint-1.0.0+5/libprint/hxx{print}
 uninstall /opt/tools/include/libprint/
-uninstall libhello-1.1.0+4/libhello/hxx{version}
-uninstall libhello-1.1.0+4/manifest{manifest}
+uninstall libhello-1.1.0+5/libhello/hxx{version}
+uninstall libhello-1.1.0+5/manifest{manifest}
 uninstall /opt/tools/share/doc/libhello/
 uninstall /opt/tools/share/doc/
 uninstall /opt/tools/share/
-uninstall libhello-1.1.0+4/libhello/hxx{hello}
-uninstall libhello-1.1.0+4/libhello/hxx{export}
+uninstall libhello-1.1.0+5/libhello/hxx{hello}
+uninstall libhello-1.1.0+5/libhello/hxx{export}
 uninstall /opt/tools/include/libhello/
 uninstall /opt/tools/include/
 uninstall /opt/tools/
-uninstalled hello/1.0.0+3
+uninstalled hello/1.0.0+4
 
 + bpkg drop hello
 following dependencies were automatically built but will no longer be used:
diff --git a/version b/version
index 2400dfa..e9b5633 100755
--- a/version
+++ b/version
@@ -10,19 +10,19 @@ usage="usage: etc/version"
 #
 # NOTE: also update in 'bdep new'?
 #
-build2_min=0.11.0
-bpkg_min=0.11.0
+build2_min=0.12.0
+bpkg_min=0.12.0
 
-ver=0.12.0-a.0.z
-#ver=0.12.0
+#ver=0.13.0-a.0.z
+ver=0.12.0
 mods=(libstd-modules libbutl libbutl.bash libbpkg libbbot bpkg)
 
-odb_ver=2.5.0-b.16.z
-#odb_ver=2.5.0-b.17
+#odb_ver=2.5.0-b.18.z
+odb_ver=2.5.0-b.17
 odb_mods=(libodb libodb-sqlite libodb-pgsql)
 
-xml_ver=1.1.0-b.7.z
-#xml_ver=1.1.0-b.7
+#xml_ver=1.1.0-b.8.z
+xml_ver=1.1.0-b.8
 xml_mods=(libstudxml)
 
 # @@ NOTE: libpkgconf version constraint in build2 is updated manually.