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32 lines
1.4 KiB
Markdown
32 lines
1.4 KiB
Markdown
# Release 1.6.1 (2013-10-28)
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This is primarily a bug fix release. Changes of interest are:
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- Nix 1.6 accidentally changed the semantics of antiquoted paths in
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strings, such as `"${/foo}/bar"`. This release reverts to the Nix
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1.5.3 behaviour.
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- Previously, Nix optimised expressions such as `"${expr}"` to *expr*.
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Thus it neither checked whether *expr* could be coerced to a string,
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nor applied such coercions. This meant that `"${123}"` evaluatued to
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`123`, and `"${./foo}"` evaluated to `./foo` (even though `"${./foo}
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"` evaluates to `"/nix/store/hash-foo "`). Nix now checks the type
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of antiquoted expressions and applies coercions.
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- Nix now shows the exact position of undefined variables. In
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particular, undefined variable errors in a `with` previously didn't
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show *any* position information, so this makes it a lot easier to
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fix such errors.
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- Undefined variables are now treated consistently. Previously, the
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`tryEval` function would catch undefined variables inside a `with`
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but not outside. Now `tryEval` never catches undefined variables.
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- Bash completion in `nix-shell` now works correctly.
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- Stack traces are less verbose: they no longer show calls to builtin
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functions and only show a single line for each derivation on the
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call stack.
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- New built-in function: `builtins.typeOf`, which returns the type of
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its argument as a string.
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