topgit-0.19.12

TopGit-0.19.12 - Compatibility Conundrum
========================================

_Reminder_

>  TopGit 0.19.4 (2017-02-14) introduced support for a new top-bases location
   under heads.  This new location will become the default as of the TopGit
   0.20.0 release.  The current location under refs will continue to be
   supported in the future.  See `tg help migrate-bases` for more details.

Tiny tweaks to provide improved compatibility with various earlier Git
versions.

The minimum Git version required is now 1.9.2 (released 2014-04-09).  This
reflects a bump up from a minimum of Git version 1.8.5 for two reasons:

 1. A feature (exclude pathspec magic) required for the 0.19.7 changes was
    actually introduced in Git 1.9.0 not Git 1.8.5 so the minimum version
    should have been updated to 1.9.0 at that point.
 2. A feature (`update-ref --stdin`) also required for the 0.19.7 update,
    which was actually introduced in Git 1.8.5, turns out not to work correctly
    until a bug fix for it was included in Git 1.9.2.

There's no pressing need to pick up this update when running a Git version
that is greater than or equal to 2.10.0.  Users of Git versions that are
greater than or equal to 1.9.2 but less than 2.10.0 probably want this update.

### Corrections

 *  Don't use `--create-reflog` before Git 2.10.0 (which added it)
 *  Don't pass `--` to `git cat-file` as it's unnecessary and breaks Git < 2.5

```
Kyle J. McKay (6):
    tg.sh: next version is 0.19.12
    tg: avoid passing '--' options terminator to git cat-file
    tg.sh: require Git 1.9.0 or later
    tg.sh: require Git 1.9.2 or later
    tg.sh: omit --create-reflog option prior to Git version 2.10.0
    topgit: version 0.19.12
```
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