v2.9.0 / 2015 June 1

This is a major, non-breaking release that improves performance and makes thawing more resilient to certain failures. Identical to v2.9.0-RC3.

• Robustness: improve error handling for unthawable records
• Performance: switch doseq -> (faster) run! calls
• Performance: eliminate some unnecessary boxed math
• New: allow intelligent auto-selection of freeze compression scheme using :auto compressor (now the default). This can result in significant speed+space improvements for users serializing many small values.

[com.taoensso/nippy "2.9.0"]

v2.8.0 / 2015 Feb 18

This is a maintenance release with some minor fixes and some dependency updates.

• CHANGE: Throw a clear error message on insufficient Encore dependency.
• FIX [#59]: freezable? should return true for clojure.lang.PersistentVector (@chairmanwow).
• FIX [#63]: Missing thaw exception cause (@cespare).

[com.taoensso/nippy "2.8.0"]

v2.7.1 / 2014 Nov 27

This is a minor maintenance release & should be a safe upgrade for users of v2.7.0/RC-1.

• CHANGE: Improve some error messages by exposing trapped throwables when possible (@kul).
• FIX: Nippy v1 thaw compatibility was broken in some cases.
• Bumped dependencies.

[com.taoensso/nippy "2.7.1"]

v2.7.0 / 2014 Oct 6

Major release with significant performance improvements, a new default compression type (LZ4), 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 compressor, replacing Snappy as the default (often ~10+% faster with similar compression ratios). Thanks to 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-infos.
• extend-thaw now prints a warning when replacing a pre-existing type id.

NEW

• #50: extend-freeze, extend-thaw can now take arbitrary keyword type ids (see docstrings for more info).

[com.taoensso/nippy "2.7.0"]

v2.6.3 / 2014 Apr 29

• Fix #48: broken freeze/thaw identity for empty lazy seqs (@vgeshel).

[com.taoensso/nippy "2.6.3"]

v2.6.2 / 2014 Apr 10

• Fix #46: broken support for Clojure <1.5.0 (@kul).

[com.taoensso/nippy "2.6.2"]

v2.6.1 / 2014 Apr 8

CRITICAL FIX for v2.6.0 released 9 days ago. Please upgrade ASAP!

Problem

Small strings weren't getting a proper UTF-8 encoding:
(.getBytes <string>) was being used here instead of
(.getBytes <string> "UTF-8") as is correct and done elsewhere.

This means that small UTF-8 strings may have been incorrectly stored
in environments where UTF-8 is not the default JVM character encoding.

Bug was introduced in Nippy v2.6.0, released 9 days ago (2014 Mar 30).

---

Please check for possible errors in Unicode text written using Nippy
v2.6.0 if your JVM uses an alternative character encoding by default

---

Really sorry about this! Thanks to @xkihzew for the bug report.

[com.taoensso/nippy "2.6.1"]

v2.6.0 / 2014 Mar 30

Major release with efficiency improvements, reliability improvements, and some new utils.

New

• Low-level fns added: freeze-to-out!, thaw-from-in! for operating directly on DataOutputs/DataInputs.
• Data size optimizations for some common small data types (small strings/keywords, small integers).
• New test suite added to ensure a 1-to-1 value->binary representation mapping for all core data types. This will be a guarantee kept going forward.
• New :skip-header? freeze option to freeze data without standard Nippy headers (can be useful in very performance sensitive environments).
• New benchmarks added, notably a Fressian comparison.
• Added experimental freezable? util fn to main ns.
• Added some property-based simple-check roundtrip tests.
• Public utils now available for custom type extension: write-bytes, write-biginteger, write-utf8, write-compact-long, and respective readers.

Changes

• BREAKING: the experimental Compressable-LZMA2 type has changed (less overhead).
• DEPRECATED: freeze-to-stream!, thaw-from-stream! are deprecated in favor of the more general freeze-to-out!, thaw-from-in!.
• DEPRECATED: :legacy-mode options. This was being used mainly for headerless freezing, so a new headerless mode is taking its place.
• Now distinguish between BigInteger and BigInt on thawing (previously both thawed to BigInts). (mlacorte).
• Moved most utils to external encore dependency.

[com.taoensso/nippy "2.6.0"]

v2.6.0-RC1

v2.6.0-RC1

v2.6.0-beta2

v2.6.0-beta2