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This project uses Break Versioning as of Aug 16, 2014.

v2.15.0-RC1 / 2019 Feb 16

[com.taoensso/nippy "2.15.0-RC1"]

This is a major feature release. It should be non-breaking but please report any problems - thanks!

  • [#113 #114] New: Support object arrays (@isaksky)
  • [#101] Change: Switch default encryptor from AES-CBC to AES-GCM (faster, includes integrity check)
  • [#116] Impl: Update lz4 lib: 1.3->1.5 (@johnmcconnell)
  • Impl: Update a number of dependencies
  • Impl: Refactor encryption utils for extra flexibility in future

v2.14.0 / 2017 Dec 21

[com.taoensso/nippy "2.14.0"]

This is a minor, non-breaking maintenance release.

  • Impl: Update a number of dependencies
  • [#104] Impl: Micro-optimization: remove unnecessary runtime 'if' in extend-freeze macro (@scramjet)
  • [#93] Impl: Pickup record redefinitions at REPL, etc. (@smee)

v2.13.0 / 2017 Feb 13

[com.taoensso/nippy "2.13.0"]

This is a minor, non-breaking maintenance release.

  • [#91] New: Add freeze-to-file and thaw-from-file utils (@Engelberg)
  • [#85] Impl: Lazily create LZ4 instance, fixes issue with Google App Engine
  • Impl: Bump 1-byte cacheable types from 5->8

v2.13.0-RC1 / 2016 Dec 17

[com.taoensso/nippy "2.13.0-RC1"]

This should be a minor, non-breaking release.

  • [#85] Impl: Lazily create LZ4 instance, fixes issue with Google App Engine
  • Impl: Bump 1-byte cacheable types from 5->8

v2.12.2 / 2016 Aug 23

[com.taoensso/nippy "2.12.2"]
  • Hotfix: private API typo

v2.12.1 / 2016 Jul 26

[com.taoensso/nippy "2.12.1"]
  • Hotfix: thaw was missing support for deprecated serializable, record types [@rwilson]

v2.12.0 / 2016 Jul 24

[com.taoensso/nippy "2.12.0"]

This is a major release that may involve some breaking API changes in rare cases for users of some low-level or obscure features that have been made private or removed. If your code compiles with this new version of Nippy, you should be fine.

As with all Nippy releases: this version can read data written by older versions but older versions may not be able to read data written by this version.

No changes since 2.12.0-RC2 Changes since 2.11.1:

  • BREAKING: dropped support for *final-freeze-fallback* (rarely used)
  • BREAKING: dropped support for *default-freeze-compressor-selector* (rarely used)
  • BREAKING: made several implementation details private, incl. most low-level write-<x> and read-<x> fns (rarely used)
  • Performance: several significant speed + space efficiency improvements, including more variable-sized types
  • New built-in types (these previously fell back to the reader): regex patterns, symbols
  • New experimental caching feature (please see cache docstring for details)
  • New: fast-freeze, fast-thaw utils (please see docstrings for details)
  • Change: freeze return val is no longer auto type hinted as ^bytes (had a performance cost, rarely used)
  • Hotfix: fn?s were incorrectly reporting true for serializable?
  • Hotfix: final-freeze-fallback back compatibility was broken

v2.12.0-RC2 / 2016 Jul 17

[com.taoensso/nippy "2.12.0-RC2"]

Changes since 2.12.0-RC1:

  • New: Experimental cache feature now supports metadata
  • Impl: Some additional minor performance improvements

v2.12.0-RC1 / 2016 Jun 23

[com.taoensso/nippy "2.12.0-RC1"]

This is a major release that may involve some breaking API changes in rare cases for users of some low-level or obscure features that have been made private or removed. If your code compiles with this new version of Nippy, you should be fine.

As with all Nippy releases: this version can read data written by older versions but older versions may not be able to read data written by this version.

PLEASE REPORT ANY PROBLEMS, thank you!

  • @ptaoussanis

No changes since 2.12.0-beta3. Changes since 2.11.1:

  • BREAKING: dropped support for *final-freeze-fallback* (rarely used)
  • BREAKING: dropped support for *default-freeze-compressor-selector* (rarely used)
  • BREAKING: made several implementation details private, incl. most low-level write-<x> and read-<x> fns (rarely used)
  • Performance: several significant speed + space efficiency improvements, including more variable-sized types
  • New built-in types (these previously fell back to the reader): regex patterns, symbols
  • New experimental caching feature (please see cache docstring for details)
  • New: fast-freeze, fast-thaw utils (please see docstrings for details)
  • Change: freeze return val is no longer auto type hinted as ^bytes (had a performance cost, rarely used)
  • Hotfix: fn?s were incorrectly reporting true for serializable?
  • Hotfix: final-freeze-fallback back compatibility was broken

v2.12.0-beta3 / 2016 Jun 17

[com.taoensso/nippy "2.12.0-beta3"]

Changes since 2.12.0-beta2:

  • Hotfix: fn?s were incorrectly reporting true for serializable?
  • Hotfix: final-freeze-fallback back compatibility was broken

v2.12.0-beta2 / 2016 Jun 10

[com.taoensso/nippy "2.12.0-beta2"]

This is a major release that may involve some breaking API changes in rare cases for users of some low-level or obscure features that have been made private or removed. If your code compiles with this new version of Nippy, you should be fine.

As with all Nippy releases: this version can read data written by older versions but older versions may not be able to read data written by this version.

  • BREAKING: dropped support for *final-freeze-fallback* (rarely used)
  • BREAKING: dropped support for *default-freeze-compressor-selector* (rarely used)
  • BREAKING: made several implementation details private, incl. most low-level write-<x> and read-<x> fns (rarely used)
  • Performance: several significant speed + space efficiency improvements, including more variable-sized types
  • New built-in types (these previously fell back to the reader): regex patterns, symbols
  • New experimental caching feature (please see cache docstring for details)
  • New: fast-freeze, fast-thaw utils (please see docstrings for details)
  • Change: freeze return val is no longer auto type hinted as ^bytes (had a performance cost, rarely used)

PLEASE REPORT ANY PROBLEMS, thank you!

v2.11.1 / 2016 Feb 25

Hotfix for broken Clojure 1.5 support

[com.taoensso/nippy "2.11.1"]

v2.11.0 / 2016 Feb 25

Identical to v2.11.0-beta1 (published December 13 2015)

[com.taoensso/nippy "2.11.0"]

v2.11.0-RC1 / 2016 Jan 23

Identical to v2.11.0-beta1 (published December 13 2015)

[com.taoensso/nippy "2.11.0-RC1"]

v2.11.0-beta1 / 2015 Dec 13

This is a major performance release that drops default support for thawing Nippy v1 archives but is otherwise non-breaking

  • BREAKING: thaw now has :v1-compatibility? opt set to false by default (was true before) [1]
  • Performance: optimize serialized size of small maps, sets, vectors, bytes
  • Performance: optimized (no copy) freeze when using no compression or encryption
  • Implementation: swap most macros for fns (make low-level utils easier to use)
[com.taoensso/nippy "2.11.0-beta1"]

Notes

[1] Use (thaw <frozen-byte-array> {:v1-compatibility? true}) to support thawing of data frozen with Nippy v1 (before ~June 2013)

v2.10.0 / 2015 Sep 30

This is a major feature/performance release that drops support for Clojure 1.4 but is otherwise non-breaking

  • BREAKING: drop support for Clojure 1.4 (now requires Clojure 1.5+)
  • Performance: various small performance improvements
  • New: dynamic *default-freeze-compressor-selector*, set-default-freeze-compressor-selector! util
  • New: dynamic *custom-readers*, swap-custom-readers! util
  • New: edn writes now override dynamic *print-level*, *print-length* for safety
[com.taoensso/nippy "2.10.0"]

v2.9.1 / 2015 Sep 14

This is a hotfix release with an important fix for Nippy encryption users

  • Fix: broken encryption thread-safety [#68]
[com.taoensso/nippy "2.9.1"]

v2.9.0 / 2015 Jun 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).

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.

v2.7.0 / 2014 Oct 6

No changes from v2.7.0-RC1.

v2.7.0-RC1 / 2014 Aug 27

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).

v2.6.3 / 2014 Apr 29

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

v2.6.2 / 2014 Apr 10

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

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.

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.

v2.5.2 / 2013 Dec 7

New

  • Test Serializable objects at freeze time for better reliability.
  • Thaw error messages now include failing type-id.

Changes

  • Don't cache serializable?/readable? for types with gensym-style names (e.g. as used for anonymous fns, etc.).
  • Failed serialized/reader thaws will try return what they can (e.g. unreadable string) instead of just throwing.

v2.5.1 / 2013 Dec 3

New

  • Added experimental inspect-ba fn for examining data possibly frozen by Nippy.

Changes

  • Now throw exception at freeze (rather than thaw) time when trying to serialize an unreadable object using the Clojure reader.

v2.4.1 → v2.5.0

  • Refactored standard Freezable protocol implementations to de-emphasise interfaces as a matter of hygiene, Ref. http://goo.gl/IFXzvh.
  • BETA STATUS: Added an additional (pre-Reader) Serializable fallback. This should greatly extend the number of out-the-box-serializable types.
  • ISeq is now used as a fallback for non-concrete seq types, giving better type matching pre/post freeze for things like LazySeqs, etc.
  • Experimental: add Compressable-LZMA2 type & (replaceable) de/serializer.

v2.3.0 → v2.4.1

  • Added (alpha) LZMA2 (high-ratio) compressor.
  • Bump tools.reader dependency to 0.7.9.

v2.2.0 → v2.3.0

  • Huge (~30%) improvement to freeze time courtesy of Zach Tellman (ztellman).

v2.1.0 → v2.2.0

  • Dropped :read-eval?, :print-dup? options.

Thanks to James Reeves (weavejester) for these changes!:

  • Switched to tools.reader.edn for safer reader fallback.
  • Added fast binary serialization for Date and UUID types.
  • Added fast binary serialization for record types.

v2.0.0 → v2.1.0

  • Exposed low-level fns: freeze-to-stream!, thaw-from-stream!.

  • Added extend-freeze and extend-thaw for extending to custom types:

  • Added support for easily extending Nippy de/serialization to custom types:

    (defrecord MyType [data])
(nippy/extend-freeze MyType 1 [x steam] (.writeUTF stream (:data x)))
(nippy/extend-thaw 1 [stream] (->MyType (.readUTF stream)))
(nippy/thaw (nippy/freeze (->MyType "Joe"))) => #taoensso.nippy.MyType{:data "Joe"}

v1.2.1 → v2.0.0

  • MIGRATION NOTE: Please be sure to use lein clean to clear old (v1) build artifacts!

  • Refactored for huge performance improvements (~40% roundtrip time).

  • New header format for better error messages.

  • New taoensso.nippy.tools ns for easier integration with 3rd-party tools.

  • DEPRECATED: freeze-to-bytes -> freeze, thaw-from-bytes -> thaw. See the new fn docstrings for updated opts, etc.

  • Added pluggable compression support:

    (freeze "Hello") ; defaults to:
(freeze "Hello" {:compressor taoensso.nippy.compression/snappy-compressor})

;; The :compressor value above can be replaced with nil (no compressor) or
;; an alternative Compressor implementing the appropriate protocol

  • Added pluggable crypto support:

    (freeze "Hello") ; defaults to:
(freeze "Hello" {:encryptor taoensso.nippy.encryption/aes128-encryptor}

;; The :encryptor value above can be replaced with nil (no encryptor) or
;; an alternative Encryptor implementing the appropriate protocol

    See the README for an example using encryption.

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