Announce: Flatpak 1.11.1 (development release)

[Simon McVittie]

Belatedly announcing this since I didn't do it at the time.

Available here:
   https://github.com/flatpak/flatpak/releases/tag/1.11.1

$ sha256sum flatpak-1.11.1.tar.xz
a21ce530496a394227719dfbe4340c64b6ccc09e193c9a63d2856c83bbccbce5  flatpak-1.11.1.tar.xz

This was the first unstable release in the series that will lead to 1.12.

New features:

* All instances of the same app-ID share their /tmp directory
* All instances of the same app-ID share their $XDG_RUNTIME_DIR
* Instances of the same app-ID can optionally share their /dev/shm directory
  (enabled by a new --allow flag, --allow=per-app-dev-shm)
* Allow a subsandbox to have a different /usr and/or /app.
  Steam will use this to launch games with its own container runtime
  as /usr (the "Steam Linux Runtime" mechanism).
* enter: Improve support for TUI programs like gdb
* build-update-repo: Add a higher-performance reimplementation of
  `ostree prune` specialized for archive-mode repositories

Bug fixes:

* Fix deploys of local remotes in system-helper
* Fix test failures on non-x86_64 systems
* Fix two intermittent test failures
* Make polkit queries non-interactive when operating in non-interactive mode
* Use a local main-context when using libsoup in a thread
* create-usb: Skip copying extra-data flatpaks
* OCI: Switch to pax-format tar archives
* history: Handle transaction log entries with empty REF field
* portal: Fix flatpak-spawn --clear-env on OSs where flatpak is not on
  the fallback PATH, such as NixOS
* Fix various issues detected by scan-build

Internal changes:

* Use GNU bison to build parse-datetime.y
* Add information about security support and security vulnerability
  reporting (see `SECURITY.md`)
* Move all git submodules into subprojects/ directory
* Several sockets are now created in /run/flatpak in the sandbox, with
  symbolic links in $XDG_RUNTIME_DIR

-- 
Simon McVittie, Collabora Ltd.
on behalf of the Flatpak maintainers