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+propellor 2.13.0 released with [[!toggle text="these changes"]]
+[[!toggleable text="""
+ * RevertableProperty used to be assumed to contain info, but this is
+ now made explicit, with RevertableProperty HasInfo or
+ RevertableProperty NoInfo. (API change)
+ Transition guide:
+ - If you define a RevertableProperty, expect some type check
+ failures like: "Expecting one more argument to ‘RevertableProperty’".
+ - Change it to "RevertableProperty NoInfo"
+ - The compiler will then tell you if it needs "HasInfo" instead.
+ - If you have code that uses the RevertableProperty constructor
+ that fails to type check, use the more powerful <!> operator
+ instead to create the RevertableProperty.
+ * Various property combinators that combined a RevertableProperty
+ with a non-revertable property used to yield a RevertableProperty.
+ This was a bug, because the combined property could not be fully
+ reverted in many cases, and the result is now a non-revertable property.
+ * combineWith now takes an additional parameter to control how revert
+ actions are combined (API change).
+ * Added Propellor.Property.Concurrent for concurrent properties.
+ * Made the execProcess exported by propellor, and everything built on it,
+ avoid scrambled output when run concurrently.
+ * Propellor now depends on STM and text.
+ * The cabal file now builds propellor with -O. While -O0 makes ghc
+ take less memory while building propellor, it can lead to bad memory
+ usage at runtime due to eg, disabled stream fusion.
+ * Add File.isCopyOf. Thanks, Per Olofsson."""]] \ No newline at end of file