Start the 8.0.0 release

CHANGELOG.md

@@ -1,7 +1,9 @@
-## 7.21.5 (unreleased)
+## 8.0.0 (unreleased)
+Release 8.0.0 is in active development, with the goal of supporting much larger data sets. When officially released it will support (mostly) seamless upgrades from the 7.x series. However until the official release, upgrades will require backing up your data from any existing 7.x cluster and restoring into a new 8.0 cluster.
 ### Implementation changes and bug fixes
 - [PR #1337](https://github.com/rqlite/rqlite/pull/1337): Store can now load from an io.Reader.
 - [PR #1339](https://github.com/rqlite/rqlite/pull/1339), [PR #1340](https://github.com/rqlite/rqlite/pull/1340), [PR #1341](https://github.com/rqlite/rqlite/pull/1341): Add `LoadRequest` chunker/dechunker.
+- [PR #1343](https://github.com/rqlite/rqlite/pull/1343): Remove no-longer supported command-line options.
 
 ## 7.21.4 (July 8th 2023)
 ### Implementation changes and bug fixes