This project uses Break Versioning (https://www.taoensso.com/break-versioning)

[releases]: https://github.com/taoensso/nippy/releases

# `v3.3.0-RC1` (2023-08-02)

> 📦 [Available on Clojars](https://clojars.org/com.taoensso/nippy/versions/3.3.3-RC1)

This is a non-breaking **feature and maintenance** pre-release.  
Please test carefully and report any unexpected problems, thank you! 🙏

## Fixes since `v3.2.0`

* fa1cc66 [fix] [#143] Don't freeze meta info for types that don't support `with-meta`

## New since `v3.2.0`

* 89f98b4 [new] [#153] PoC: transducer support on thaw
* 60bc4e9 [new] [Storage efficiency] PoC: unsigned counts for small core colls
* 0a9d670 [new] [Storage efficiency] PoC: separate signed long types
* 8778fa4 [new] Include `:bindings` in ex-data of thaw failures
* aba153e [new] [#159] Add native impln for `java.sql.Date` (@philomates)
* d8b1825 [new] [#158] Add `java.lang.ClassCastException` to default thaw allow list (@carlosgeos)
* 8b7186a [new] Update [benchmark results](https://github.com/taoensso/nippy#performance)
* 3ac06b6 [new] Refactor tools ns, embed dynamic `*freeze-opts*` in wrappers
* 129ce95 [new] [#151] [#140] Add experimental `public-types-spec`


# `v3.2.0` (2022-07-18)

> Identical to `v3.2.0-RC3` (2022 Jun 27)

```clojure
[com.taoensso/nippy "3.2.0"]
```

> This is a non-breaking maintenance release.  
> See [here](https://github.com/ptaoussanis/encore#recommended-steps-after-any-significant-dependency-update) for recommended steps when updating any Clojure/Script dependencies.

## New since `v3.1.3`

* [#144] [New] Add `org.joda.time.DateTime` to `default-thaw-serializable-allowlist` (@slipset)
* [#146] [New] Add Graal native configurations (@FieryCod)

## Changes since `v3.1.3`

* Bump dependencies, incl. minimum Encore version

## Fixes since `v3.1.1`

* [#89 #150] [Fix] Boxed Booleans incorrectly freezing to primitive `true` (@RolT)
* [#148] [Fix] `tools/freeze` should use `*freeze-opts*` even for unwrapped vals
* [#145] [Fix] Freezing custom types with munged field names

The boxed Boolean bug has been around since the first version of Nippy and is mostly
relevant to users doing Java interop. For more info see: https://github.com/ptaoussanis/nippy/commit/8909a32bdd654a136da385e0e09c9cc44416f964


# `v3.2.0-RC3` (2022-06-27)

```clojure
[com.taoensso/nippy "3.2.0-RC3"]
```

> This is a non-breaking maintenance release.  
> See [here](https://github.com/ptaoussanis/encore#recommended-steps-after-any-significant-dependency-update) for recommended steps when updating any Clojure/Script dependencies.

## New since `v3.1.3`

* [#144] [New] Add `org.joda.time.DateTime` to `default-thaw-serializable-allowlist` (@slipset)
* [#146] [New] Add Graal native configurations (@FieryCod)

## Changes since `v3.1.3`

* Bump dependencies, incl. minimum Encore version

## Fixes since `v3.1.1`

* [#89 #150] [Fix] Boxed Booleans incorrectly freezing to primitive `true` (@RolT)
* [#148] [Fix] `tools/freeze` should use `*freeze-opts*` even for unwrapped vals
* [#145] [Fix] Freezing custom types with munged field names

The boxed Boolean bug has been around since the first version of Nippy and is mostly
relevant to users doing Java interop. For more info see: https://github.com/ptaoussanis/nippy/commit/8909a32bdd654a136da385e0e09c9cc44416f964


# `v3.2.0-RC2` (2022-06-23)

```clojure
[com.taoensso/nippy "3.2.0-RC2"]
```

> This is a non-breaking maintenance release.  
> See [here](https://github.com/ptaoussanis/encore#recommended-steps-after-any-significant-dependency-update) for recommended steps when updating any Clojure/Script dependencies.

## New since `v3.1.3`

* [#144] [New] Add `org.joda.time.DateTime` to `default-thaw-serializable-allowlist` (@slipset)
* [#146] [New] Add Graal native configurations (@FieryCod)

## Changes since `v3.1.3`

* Bump dependencies, incl. minimum Encore version

## Fixes since `v3.1.1`

* [#148] [Fix] `tools/freeze` should use `*freeze-opts*` even for unwrapped vals
* [#89 #150] [Fix] Boxed Booleans incorrectly freezing to primitive `true` (@RolT)

The boxed Boolean bug has been around since the first version of Nippy and is mostly
relevant to users doing Java interop. For more info see: https://github.com/ptaoussanis/nippy/commit/8909a32bdd654a136da385e0e09c9cc44416f964


# `v3.1.3` (2022-06-23)

```clojure
[com.taoensso/nippy "3.1.3"]
```

> This is a non-breaking, bugfix release.  
> See [here](https://github.com/ptaoussanis/encore#recommended-steps-after-any-significant-dependency-update) for recommended steps when updating any Clojure/Script dependencies.

## Fixes since `v3.1.1`

* [#148] [Fix] `tools/freeze` should use `*freeze-opts*` even for unwrapped vals
* [#89 #150] [Fix] Boxed Booleans incorrectly freezing to primitive `true` (@RolT)

The boxed Boolean bug has been around since the first version of Nippy and is mostly
relevant to users doing Java interop. For more info see: https://github.com/ptaoussanis/nippy/commit/8909a32bdd654a136da385e0e09c9cc44416f964


# `v3.1.1` (2020-11-18)

```clojure
[com.taoensso/nippy "3.1.1"]
```

> This is a non-breaking, bugfix release. But please note that large keywords or symbols (with >127 characters) frozen with >=`v3.1.1` will need >=`v3.1.1` to thaw.

## Fixes since `v3.1.0`

* Large keywords and symbols (with >127 characters) can now thaw without throwing (@danmason).


[1] Keywords or symbols with >127 characters in their name

# `v3.1.0` / (2020-11-06)

```clojure
[com.taoensso/nippy "3.1.0"]
```

> This is a non-breaking, minor feature release.

## New since `v3.0.0`

* [#135 #128] Added native `freeze/thaw` support for `java.time` classes on JVM 8+: `Instant`, `Duration`, `Period`.
* [#137] Add `thaw-from-resource` convenience util.
* Add (DEPRECATED) `swap-serializable-whitelist!` for backwards compatibility.

## Changes since `v3.0.0`

* Add several standard `java.time` classes to default `*thaw-serializable-whitelist*`.


## `v3.1.0-RC1` (2020-10-24)

```clojure
[com.taoensso/nippy "3.1.0-RC1"]
```

> This is a non-breaking, minor feature release.

## New since `v3.0.0`

* [#135 #128] Added native `freeze/thaw` support for `java.time.Instant` on JVM 8+ (@cnuernber).


# `v3.0.0` (2020-09-20)

```clojure
[com.taoensso/nippy "3.0.0"]
```

> This release is focused on smoothing out rough edges left by `CVE-2020-24164` [#130], and to **ease transition** from versions of Nippy < `v2.15.0 final`.

> See [here](https://github.com/ptaoussanis/encore#recommended-steps-after-any-significant-dependency-update) for recommended steps when updating any Clojure/Script dependencies.

Note that there's **separate details** below for upgrading from `v2.15` vs `v2.14`:

## Upgrading from `v2.15` (usually non-breaking)

Usually a non-breaking drop-in replacement, but there's some changes you might like to take advantage of. See [#130] for **detailed upgrade instructions**.

### Changes

  - **[BREAKING]** Bumped minimum Clojure version from `v1.5` to `v1.7`.
  - **[BREAKING]** `:nippy/unthawable` responses now have a standardized form: `{:nippy/unthawable {:type _ :cause _ ...}`. Most folks won't care about this change unless they have code specifically to deal with `:nippy/unthawable` responses.
  - [Deprecated] `*serializable-whitelist*` has been split into two separate vars: `*freeze-serializable-allowlist*`, `*thaw-serializable-allowlist`*. See [#130] for details.
  - By default, `freeze` now **allows** the use of Java's Serializable for **any** class. `thaw` continues to be restrictive by default, and will quarantine any objects not on the class allowlist. See [#130] for details.

### New

  - [#122] Option to disable freezing and/or thawing of metadata.
  - `freeze` and `thaw` now support opts: `:serializable-allowlist`, `:incl-metadata?`.
  - New `read-quarantined-serializable-object-unsafe!` util to read quarantined Serializable objects. See [API docs](http://ptaoussanis.github.io/nippy/taoensso.nippy.html#var-read-quarantined-serializable-object-unsafe.21) and/or [#130] for details.
  - Add `allow-and-record-any-serializable-class-unsafe` util. See [API docs](http://ptaoussanis.github.io/nippy/taoensso.nippy.html#var-allow-and-record-any-serializable-class-unsafe) and/or [#130] for details.


## Upgrading from `v2.14` (may be BREAKING)

Likely breaking. Please see [#130] for **detailed upgrade instructions**.

### Changes

  - **[BREAKING]** Bumped minimum Clojure version from `v1.5` to `v1.7`.
  - **[BREAKING]** [#130] `thaw` will now quarantine Serializable objects whose class is not allowed by `*thaw-serializable-allowlist*`. See [#130] for details.
  - **[BREAKING]** `:nippy/unthawable` responses now have a standardized form: `{:nippy/unthawable {:type _ :cause _ ...}`. Most folks won't care about this change unless you have code specifically to deal with `:nippy/unthawable` responses.
  - [#101] Switch default encryptor from `AES-CBC` to `AES-GCM` (faster, includes integrity check)

### New

  - [#127] Add utils: `freeze-to-string`, `thaw-from-string` (@piotr-yuxuan)
  - [#113 #114] Add support for object arrays (@isaksky)
  - [#83 #112] Add support for deftype (@isaksky)
  - [#83 #113] Add support for URIs (@isaksky)
  - [#126] `extend-freeze`: include id collision odds in docstring

### Fixes

  - [#120] Update `freezable?` to cover `nil`

  
# Earlier releases

See [here][releases] for earlier releases.