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+Version 0.14.0
+
+ * Support for configuration types, configuration linking, and build-time
+ dependencies.
+
+ Configurations can now be linked with each other to allow a package to be
+ built in one configuration while its dependencies in one or more linked
+ configurations. This can be used to create a "base" configuration with
+ common dependencies that are shared between multiple configurations.
+
+ Configurations now also have types with the three predefined types being
+ `target` (the default) `host` (used for build-time dependencies), and
+ `build2` (used for build system modules). This mechanism together with
+ configuration linking is used to provide separate configurations for
+ build-time dependencies, for example, tools that need to be executed or
+ build system modules that need to be loaded during the build.
+
+ If during dependency resolution a build-time dependency is encountered and
+ there is no build configuration of a suitable type linked with the target
+ configuration, then a private configuration of the needed type is
+ automatically created and linked.
+
+ New relevant commands: bpkg-cfg-{link,unlink,info}.
+
+ Command with relevant changes (new options, etc): bpkg-cfg-create,
+ bpkg-pkg-{build,status}.
+
+ See bpkg-cfg-create(1) for details of this functionality.
+
+ * Tests, examples, and benchmark packages (see the `tests`, `examples`, and
+ `benchmarks` package manifest values) can now also be run-time or build-
+ time.
+
+ * Two new pre-defined automated build bot requirements: `bootstrap` (package
+ is a build system modules that requires bootstrapping) and `host` (package
+ is normally used as build-time dependency and should be built in a host
+ configuration).
+
+ See the `requires` package manifest value for details.
+
+ * Configuration of an external package is now preserved between upgrades and
+ downgrades.
+
+ The same behavior for normal packages is still a TODO. The old behavior
+ can be achieved with the new --disfigure bpkg-pkg-build option that forces
+ a from-scratch reconfiguration.
+
+ * New `min-bpkg-version` repositories manifest value that allows specifying
+ minimum supported bpkg version.
+
+ See also the new --min-bpkg-version bpkg-rep-create option.
+
+ * Change of the `build-email` package manifest value semantics.
+
+ Now build result notifications are only sent if this value is explicitly
+ specified (before we used to fallback to `email`).
+
+ * New --immediate|-i and --recursive|-r bpkg-pkg-{update,clean} options.
+
+ These options can be used to additionally updating or cleaning immediate
+ or all dependencies of a package, respectively.
+
+ * New --all-pattern bpkg-pkg-{update,clean,test,install,uninstall} option.
+
+ This option can be used to perform the command on all the held packages
+ that match a wildcard patterns.
+
+ * New --rebuild-checksum bpkg-pkg-build option.
+
+ This option can be used to avoid rebuilds if the result of a dependency
+ resolution for a package has not changed.
+
+ * New --noop-exit bpkg-pkg-build option.
+
+ This option can be used to request a distinct exit code if the build is
+ a noop (performs no new package builds, upgrades, etc).
+
+ * New --output-{root,purge} bpkg-pkg-checkout and --checkout-{root,purge}
+ bpkg-pkg-build options.
+
+ * New --keep-config bpkg-pkg-disfigure option.
+
+ * New BPKG_DEF_OPT environment variable that can be used to suppress loading
+ of default options files.
+
Version 0.13.0
* The SPDX License Expression is now the default scheme for the 'license'