diff options
Diffstat (limited to 'doc/manual/src/release-notes/rl-0.10.md')
| -rw-r--r-- | doc/manual/src/release-notes/rl-0.10.md | 66 |
1 files changed, 33 insertions, 33 deletions
diff --git a/doc/manual/src/release-notes/rl-0.10.md b/doc/manual/src/release-notes/rl-0.10.md index 1301add26..05e6dcf76 100644 --- a/doc/manual/src/release-notes/rl-0.10.md +++ b/doc/manual/src/release-notes/rl-0.10.md @@ -1,67 +1,67 @@ # Release 0.10 (2006-10-06) > **Note** -> +> > This version of Nix uses Berkeley DB 4.4 instead of 4.3. The database > is upgraded automatically, but you should be careful not to use old > versions of Nix that still use Berkeley DB 4.3. In particular, if you > use a Nix installed through Nix, you should run -> +> > $ nix-store --clear-substitutes -> +> > first. > **Warning** -> +> > Also, the database schema has changed slighted to fix a performance > issue (see below). When you run any Nix 0.10 command for the first > time, the database will be upgraded automatically. This is > irreversible. - `nix-env` usability improvements: - + - An option `--compare-versions` (or `-c`) has been added to `nix-env --query` to allow you to compare installed versions of packages to available versions, or vice versa. An easy way to see if you are up to date with what’s in your subscribed channels is `nix-env -qc \*`. - + - `nix-env --query` now takes as arguments a list of package names about which to show information, just like `--install`, etc.: for example, `nix-env -q gcc`. Note that to show all derivations, you need to specify `\*`. - + - `nix-env -i pkgname` will now install the highest available version of *pkgname*, rather than installing all available versions (which would probably give collisions) (`NIX-31`). - + - `nix-env (-i|-u) --dry-run` now shows exactly which missing paths will be built or substituted. - + - `nix-env -qa --description` shows human-readable descriptions of packages, provided that they have a `meta.description` attribute (which most packages in Nixpkgs don’t have yet). - New language features: - + - Reference scanning (which happens after each build) is much faster and takes a constant amount of memory. - + - String interpolation. Expressions like - + "--with-freetype2-library=" + freetype + "/lib" - + can now be written as - + "--with-freetype2-library=${freetype}/lib" - + You can write arbitrary expressions within `${...}`, not just identifiers. - + - Multi-line string literals. - + - String concatenations can now involve derivations, as in the example `"--with-freetype2-library=" + freetype + "/lib"`. This was not previously possible because @@ -69,17 +69,17 @@ dependent on `freetype`. The evaluator now properly propagates this information. Consequently, the subpath operator (`~`) has been deprecated. - + - Default values of function arguments can now refer to other function arguments; that is, all arguments are in scope in the default values (`NIX-45`). - + - Lots of new built-in primitives, such as functions for list manipulation and integer arithmetic. See the manual for a complete list. All primops are now available in the set `builtins`, allowing one to test for the availability of primop in a backwards-compatible way. - + - Real let-expressions: `let x = ...; ... z = ...; in ...`. @@ -89,15 +89,15 @@ your machine and you want to copy it somewhere else. - XML support: - + - `nix-env -q --xml` prints the installed or available packages in an XML representation for easy processing by other tools. - + - `nix-instantiate --eval-only --xml` prints an XML representation of the resulting term. (The new flag `--strict` forces ‘deep’ evaluation of the result, i.e., list elements and attributes are evaluated recursively.) - + - In Nix expressions, the primop `builtins.toXML` converts a term to an XML representation. This is primarily useful for passing structured information to builders. @@ -133,21 +133,21 @@ something other than `result`. - Platform support: - + - Support for 64-bit platforms, provided a [suitably patched ATerm library](http://bugzilla.sen.cwi.nl:8080/show_bug.cgi?id=606) is used. Also, files larger than 2 GiB are now supported. - + - Added support for Cygwin (Windows, `i686-cygwin`), Mac OS X on Intel (`i686-darwin`) and Linux on PowerPC (`powerpc-linux`). - + - Users of SMP and multicore machines will appreciate that the number of builds to be performed in parallel can now be specified in the configuration file in the `build-max-jobs` setting. - Garbage collector improvements: - + - Open files (such as running programs) are now used as roots of the garbage collector. This prevents programs that have been uninstalled from being garbage collected while they are still @@ -155,17 +155,17 @@ (`find-runtime-roots.pl`) is inherently system-specific, but it should work on Linux and on all platforms that have the `lsof` utility. - + - `nix-store --gc` (a.k.a. `nix-collect-garbage`) prints out the number of bytes freed on standard output. `nix-store --gc --print-dead` shows how many bytes would be freed by an actual garbage collection. - + - `nix-collect-garbage -d` removes all old generations of *all* profiles before calling the actual garbage collector (`nix-store --gc`). This is an easy way to get rid of all old packages in the Nix store. - + - `nix-store` now has an operation `--delete` to delete specific paths from the Nix store. It won’t delete reachable (non-garbage) paths unless `--ignore-liveness` is specified. @@ -192,13 +192,13 @@ memoisation of path hashing. - Lots of bug fixes, notably: - + - Make sure that the garbage collector can run successfully when the disk is full (`NIX-18`). - + - `nix-env` now locks the profile to prevent races between concurrent `nix-env` operations on the same profile (`NIX-7`). - + - Removed misleading messages from `nix-env -i` (e.g., ``installing `foo'`` followed by ``uninstalling |