Merge #246: doc: Bump version 8 > 9

b1638ac doc: Bump version 8 > 9 (Ryan Ofsky)

Pull request description:

  Increase version number after bitcoin core update bitcoin/bitcoin#34422. Also update version history and documentation.

ACKs for top commit:
  Sjors:
    ACK b1638ac

Tree-SHA512: 2d99993740bf2e8b5cee298e4b945cac66182483fe03e91611e144e0332bcd9200c6f53e1b2d9369bb57a31f590c84df662cd61ec123fdc5a8abcd1ad1b016d8

Author: ryanofsky

doc/versions.md

@@ -7,55 +7,68 @@ Library versions are tracked with simple
 Versioning policy is described in the [version.h](../include/mp/version.h)
 include.
 
-## v8
-- Current unstable version in master branch.
+## v9
+- Current unstable version.
 
-## v7.0
-- Adds SpawnProcess race fix, cmake `target_capnp_sources` option, ci and documentation improvements.
-- Used in Bitcoin Core master branch, pulled in by [#34363](https://github.com/bitcoin/bitcoin/pull/34363).
+## [v8.0](https://github.com/bitcoin-core/libmultiprocess/commits/v8.0)
+- Better support for non-libmultiprocess IPC clients: avoiding errors on unclean disconnects, and allowing simultaneous requests to worker threads which previously triggered "thread busy" errors.
+- Used in Bitcoin Core, pulled in by [#34422](https://github.com/bitcoin/bitcoin/pull/34422).
 
-## v7.0-pre1
+## [v7.0](https://github.com/bitcoin-core/libmultiprocess/commits/v7.0)
+- Adds SpawnProcess race fix, cmake `target_capnp_sources` option, ci and documentation improvements. Adds `version.h` header declaring major and minor version numbers.
+- Used in Bitcoin Core, pulled in by [#34363](https://github.com/bitcoin/bitcoin/pull/34363).
 
-- Adds support for log levels to reduce logging and "thread busy" error to avoid a crash on misuse. Fixes intermittent mptest hang and makes other minor improvements.
-- Used in Bitcoin Core 30.1 and 30.2 releases and 30.x branch. Pulled in by [#33412](https://github.com/bitcoin/bitcoin/pull/33412), [#33518](https://github.com/bitcoin/bitcoin/pull/33518), and [#33519](https://github.com/bitcoin/bitcoin/pull/33519).
+## [v7.0-pre2](https://github.com/bitcoin-core/libmultiprocess/commits/v7.0-pre2)
+- Fixes intermittent mptest hang and makes other minor improvements.
+- Used in Bitcoin Core 30.1 and 30.2 releases and 30.x branch, pulled in by [#33518](https://github.com/bitcoin/bitcoin/pull/33518) and [#33519](https://github.com/bitcoin/bitcoin/pull/33519).
 
-## v6.0
+## [v7.0-pre1](https://github.com/bitcoin-core/libmultiprocess/commits/v7.0-pre1)
 
-- Adds fixes for unclean shutdowns and thread sanitizer issues and adds CI scripts.
+- Adds support for log levels to reduce logging and "thread busy" error to avoid a crash on misuse.
+- Minimum required version for Bitcoin Core 30.1 and 30.2 releases and 30.x branch, pulled in by [#33412](https://github.com/bitcoin/bitcoin/pull/33412), [#33518](https://github.com/bitcoin/bitcoin/pull/33518), and [#33519](https://github.com/bitcoin/bitcoin/pull/33519).
+
+## [v6.0](https://github.com/bitcoin-core/libmultiprocess/commits/v6.0)
+
+- Adds CI scripts and build and test fixes.
+- Used in Bitcoin Core 30.0 release, pulled in by [#32345](https://github.com/bitcoin/bitcoin/pull/32345), [#33241](https://github.com/bitcoin/bitcoin/pull/33241), and [#33322](https://github.com/bitcoin/bitcoin/pull/33322).
+
+## [v6.0-pre1](https://github.com/bitcoin-core/libmultiprocess/commits/v6.0-pre1)
+
+- Adds fixes for unclean shutdowns and thread sanitizer issues.
 - Drops `EventLoop::addClient` and `EventLoop::removeClient` methods,
   requiring clients to use new `EventLoopRef` class instead.
-- Used in Bitcoin Core 30.0 release. Pulled in by [#31741](https://github.com/bitcoin/bitcoin/pull/31741), [#32641](https://github.com/bitcoin/bitcoin/pull/32641), [#32345](https://github.com/bitcoin/bitcoin/pull/32345), [#33241](https://github.com/bitcoin/bitcoin/pull/33241), and [#33322](https://github.com/bitcoin/bitcoin/pull/33322).
+- Minimum required version for Bitcoin Core 30.0 release, pulled in by [#31741](https://github.com/bitcoin/bitcoin/pull/31741), [#32641](https://github.com/bitcoin/bitcoin/pull/32641), and [#32345](https://github.com/bitcoin/bitcoin/pull/32345).
 
-## v5.0
+## [v5.0](https://github.com/bitcoin-core/libmultiprocess/commits/v5.0)
 - Adds build improvements and tidy/warning fixes.
 - Used in Bitcoin Core 29 releases, pulled in by [#31945](https://github.com/bitcoin/bitcoin/pull/31945).
 
-## v5.0-pre1
+## [v5.0-pre1](https://github.com/bitcoin-core/libmultiprocess/commits/v5.0-pre1)
 - Adds many improvements to Bitcoin Core mining interface: splitting up type headers, fixing shutdown bugs, adding subtree build support.
 - Broke up `proxy-types.h` into `type-*.h` files requiring clients to explicitly
   include overloads needed for C++ ↔️ Cap'n Proto type conversions.
 - Now requires C++ 20 support.
 - Minimum required version for Bitcoin Core 29 releases, pulled in by [#30509](https://github.com/bitcoin/bitcoin/pull/30509), [#30510](https://github.com/bitcoin/bitcoin/pull/30510), [#31105](https://github.com/bitcoin/bitcoin/pull/31105), [#31740](https://github.com/bitcoin/bitcoin/pull/31740).
 
-## v4.0
+## [v4.0](https://github.com/bitcoin-core/libmultiprocess/commits/v4.0)
 - Added better cmake support, installing cmake package files so clients do not
   need to use pkgconfig.
 - Used in Bitcoin Core 28 releases, pulled in by [#30490](https://github.com/bitcoin/bitcoin/pull/30490) and [#30513](https://github.com/bitcoin/bitcoin/pull/30513).
 
-## v3.0
+## [v3.0](https://github.com/bitcoin-core/libmultiprocess/commits/v3.0)
 - Dropped compatibility with Cap'n Proto versions before 0.7.
 - Used in Bitcoin Core 27 releases, pulled in by [#28735](https://github.com/bitcoin/bitcoin/pull/28735), [#28907](https://github.com/bitcoin/bitcoin/pull/28907), and [#29276](https://github.com/bitcoin/bitcoin/pull/29276).
 
-## v2.0
+## [v2.0](https://github.com/bitcoin-core/libmultiprocess/commits/v2.0)
 - Changed `PassField` function signature.
 - Now requires C++17 support.
 - Used in Bitcoin Core 25 and 26 releases, pulled in by [#26672](https://github.com/bitcoin/bitcoin/pull/26672).
 
-## v1.0
+## [v1.0](https://github.com/bitcoin-core/libmultiprocess/commits/v1.0)
 - Dropped hardcoded includes in generated files, now requiring `include` and
   `includeTypes` annotations.
 - Used in Bitcoin Core 22, 23, and 24 releases, pulled in by [#19160](https://github.com/bitcoin/bitcoin/pull/19160).
 
-## v0.0
+## [v0.0](https://github.com/bitcoin-core/libmultiprocess/commits/v0.0)
 - Initial version used in a downstream release.
 - Used in Bitcoin Core 21 releases, pulled in by [#16367](https://github.com/bitcoin/bitcoin/pull/16367), [#18588](https://github.com/bitcoin/bitcoin/pull/18588), and [#18677](https://github.com/bitcoin/bitcoin/pull/18677).

include/mp/version.h

@@ -24,7 +24,7 @@
 //! pointing at the prior merge commit. The /doc/versions.md file should also be
 //! updated, noting any significant or incompatible changes made since the
 //! previous version.
-#define MP_MAJOR_VERSION 8
+#define MP_MAJOR_VERSION 9
 
 //! Minor version number. Should be incremented in stable branches after
 //! backporting changes. The /doc/versions.md file should also be updated to