This is an archive of the discontinued Mercurial Phabricator instance.

Differential D10496

relnote: clarify the backward compatibility entry about p1/p2 swap
ClosedPublic

Authored by marmoute on Apr 20 2021, 10:48 AM.

Details

Reviewers
pulkit
Group Reviewers
hg-reviewers
Commits
rHG65d18001cfbf: relnote: clarify the backward compatibility entry about p1/p2 swap
Summary

The previous message might read a bit scary. So we clarify that the nodeid are
not affected.

Diff Detail

Repository
rHG Mercurial
Branch
default
Lint
No Linters Available
Unit
No Unit Test Coverage

Revision Contents
Changeset List

PathPackages
Mrelnotes/next (2 lines)

Diff 27126

relnotes/next

== Backwards Compatibility Changes == == Backwards Compatibility Changes ==
* In normal repositories, the first parent of a changeset is not null, * In normal repositories, the first parent of a changeset is not null,
unless both parents are null (like the first changeset). Some legacy unless both parents are null (like the first changeset). Some legacy
repositories violate this condition. The revlog code will now repositories violate this condition. The revlog code will now
silentely swap the parents if this condition is tested. This can silentely swap the parents if this condition is tested. This can
change the output of `hg log` when explicitly asking for first or change the output of `hg log` when explicitly asking for first or
second parent. second parent. The changesets "nodeid" are not affected.
== Internal API Changes == == Internal API Changes ==
* `changelog.branchinfo` is deprecated and will be removed after 5.8. * `changelog.branchinfo` is deprecated and will be removed after 5.8.
It is superseded by `changelogrevision.branchinfo`. It is superseded by `changelogrevision.branchinfo`.
* Callbacks for revlog.addgroup and the changelog._nodeduplicatecallback hook * Callbacks for revlog.addgroup and the changelog._nodeduplicatecallback hook
now get a revision number as argument instead of a node. now get a revision number as argument instead of a node.
* revlog.addrevision returns the revision number instead of the node. * revlog.addrevision returns the revision number instead of the node.
* `nodes.nullid` and related constants are being phased out as part of * `nodes.nullid` and related constants are being phased out as part of
the deprecation of SHA1. Repository instances and related classes the deprecation of SHA1. Repository instances and related classes
provide access via `nodeconstants` and in some cases `nullid` attributes. provide access via `nodeconstants` and in some cases `nullid` attributes.