relnotes: add 6.2rc0

relnotes/6.2

@@ -0,0 +1,69 b''
+= Mercurial 6.2rc0 =
+
+'''This is the first release to support Python 3.6+ ''only'''''
+
+== New Features ==
+ * Introduce a way to auto-upgrade a repo for certain requirements (see `hg help config.format`)
+ * filemerge: add support for partial conflict resolution by external tool
+ * contrib: add a partial-merge tool for sorted lists (such as Python imports)
+ * revlog: reorder p1 and p2 when p1 is null and p2 is not while respecting issue6528
+ * rhg: add support for ignoring all extensions
+ * completion: install completers to conventional locations
+ * revert: ask user to confirm before tracking new file when interactive
+ * Rust implementation now uses the new dirstate API
+ * sslutil: be less strict about which ciphers are allowed when using --insecure
+ * sslutil: support TLSV1_ALERT_PROTOCOL_VERSION reason code
+ * absorb: make `--edit-lines` imply `--apply-changes`
+ * diff: add help text to highlight the ability to do merge diffs
+ * censor: make rhg fall back to python when encountering a censored node
+ * clone: use better names for temp files
+ * debuglock: make the command more useful in non-interactive mode
+ * debugdeltachain: distinct between snapshot and other diffs
+ * debugindex: rename to debugindex debug-revlog-index
+ * Make debug-revlog-index give out more information
+ * sparse: use the rust code even when sparse is present
+
+== Bug Fixes ==
+ * Python 3 bugfixes
+ * Windows bugfixes
+ * templates: make `firstline` filter not keep '\v', '\f' and similar
+ * rhg: sort unsupported extensions in error message
+ * Improve performance of all functions that extract the first line of a text
+ * crecord: avoid duplicating lines when reverting noeol->eol change
+ * Some config.path options are now discoverable via config
+ * mail: don't complain about a multi-word email.method
+ * bundlespec: do not overwrite bundlespec value with the config one
+ * bundlespec: do not check for `-` in the params portion of the bundlespec
+ * bundlespec: handle the presence of obsmarker part
+ * sparse: start moving away from the global variable for detection of usage
+ * rust-changelog: don't skip empty lines when iterating over changeset lines
+ * narrow: support debugupgraderepo
+ * bundle: quick fix to ludicrous performance penalty
+ * followlines: don't put Unicode directly into the .js file (issue6559)
+ * manifest: improve error message in case for tree manifest
+ * revlog: use %d to format int instead of %lu (issue6565)
+ * revlog: use appropriate format char for int ("i" instead of I")
+ * worker: stop relying on garbage collection to release memoryview
+ * worker: implement _blockingreader.readinto() (issue6444)
+ * worker: avoid potential partial write of pickled data
+
+== Backwards Compatibility Changes ==
+ * '''Removed Python 2 support''': this includes a lot of cleanup in our codebase, automation, testing, etc.
+ * debugindex: rename to debugindex debug-revlog-index
+
+== Miscellaneous ==
+
+ * Fix typos and add missing items from documentation
+ * dirstate-tree: optimize HashMap lookups with raw_entry_mut
+ * Rust dependencies have been upgraded
+ * revlog: rank computation is done by Rust when available
+ * Improve discovery test tooling
+ * Audit the number of queries done in discovery
+ * Improved .hgignore of the mercurial-devel repository itself
+ * Improve test coverage of dirstate-v2
+ * rust-requirements: allow loading repos with `bookmarksinstore` requirement
+ * Various Rust refactorings to help with revlog management
+ * Improve debugability of Rust structs
+ * Improve unit testing of the Rust dirstatemap
+ * Improve robustness of the Rust dirstatemap to corruption
+ * Improve changelog-v2 upgrade system