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v2.7.0-alpha1

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Peter Taoussanis 2014-04-05 18:14:24 +07:00
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CHANGELOG.md
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## v2.7.0-alpha1 / 2014 Jul 6
> **Major release** with significant performance improvements, a new default compression type ([LZ4](http://blog.jpountz.net/post/28092106032/wow-lz4-is-fast)), and better support for a variety of compression/encryption tools.
>
> The data format is fully **backwards-compatible**, the API is backwards compatible **unless** you are using the `:headerless-meta` thaw option.
### Changes
* A number of internal performance improvements.
* Added [LZ4](http://blog.jpountz.net/post/28092106032/wow-lz4-is-fast) compressor, **replacing Snappy as the default** (often ~10+% faster with similar compression ratios). **Thanks to [mpenet](https://github.com/mpenet) for his work on this**!
* **BREAKING**: the `thaw` `:headerless-meta` option has been dropped. Its purpose was to provide Nippy v1 compatibility, which is now done automatically. To prevent any surprises, `thaw` calls with this option will now **throw an assertion error**.
* **IMPORTANT**: the `thaw` API has been improved (simplified). The default `:encryptor` and `:compressor` values are now both `:auto`, which'll choose intelligently based on data now included with the Nippy header. Behaviour remains the same for data written without a header: you must specify the correct `:compressor` and `:encryptor` values manually.
* Promoted from Alpha status: `taoensso.nippy.compression` ns, `taoensso.nippy.encryption` ns, `taoensso.nippy.tools` ns, `extend-freeze`, `extend-thaw`.
* All Nippy exceptions are now `ex-info`s.
### NEW
* #50: `extend-freeze`, `extend-thaw` can now take arbitrary keyword type ids (see docstrings for more info).
## v2.6.3 / 2014 Apr 29
* Fix #48: broken freeze/thaw identity for empty lazy seqs (@vgeshel).

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README.md
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**[API docs][]** | **[CHANGELOG][]** | [other Clojure libs][] | [Twitter][] | [contact/contributing](#contact--contributing) | current ([semantic][]) version:
```clojure
[com.taoensso/nippy "2.6.3"] ; Stable (please upgrade from v2.6.0 ASAP)
[com.taoensso/nippy "2.6.3"] ; Stable
[com.taoensso/nippy "2.7.0-alpha1"] ; EXPERIMENTAL! May irrevocably eat your data!!
```
v2.6 is a **major, backwards-compatible release** with: improved performance (incl. frozen data size), a new low-level DataInput/DataOuput API, improved support for headerless freezing, and 1-to-1 binary-value representation guarantees. See the [CHANGELOG][] for details.
v2.7 is a major, **mostly backwards-compatible** release focused on improved performance and a new default compression scheme (LZ4). See the [CHANGELOG][] for details. Thanks to [mpenet](https://github.com/mpenet) for his work on the LZ4 support!
# Nippy, a Clojure serialization library

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project.clj
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(defproject com.taoensso/nippy "2.6.3"
(defproject com.taoensso/nippy "2.7.0-alpha1"
:author "Peter Taoussanis <https://www.taoensso.com>"
:description "Clojure serialization library"
:url "https://github.com/ptaoussanis/nippy"