4.2.0 (25 September 2019)¶ ↑

• show code context for error messages (#167)

• defer initialisation of ExecJS context to fix #165

4.1.20 (17 November 2018)¶ ↑

• update UglifyJS to 3.4.8

4.1.19 (11 September 2018)¶ ↑

• update UglifyJS to 3.4.9

4.1.18 (09 August 2018)¶ ↑

• update UglifyJS to 3.4.7

4.1.17 (29 July 2018)¶ ↑

• update UglifyJS to 3.4.6

4.1.16 (22 July 2018)¶ ↑

• update UglifyJS to 3.4.5

4.1.15 (13 July 2018)¶ ↑

• update UglifyJS to 3.4.4

4.1.14 (02 July 2018)¶ ↑

• update UglifyJS to 3.4.3

4.1.13 (30 June 2018)¶ ↑

• update UglifyJS to 3.4.2

4.1.12 (20 June 2018)¶ ↑

• update UglifyJS to 3.4.1

4.1.11 (02 June 2018)¶ ↑

• update UglifyJS to 3.3.28

4.1.10 (21 April 2018)¶ ↑

• update UglifyJS to 3.3.22

4.1.9 (11 April 2018)¶ ↑

• update UglifyJS to 3.3.20

4.1.8 (14 March 2018)¶ ↑

• update UglifyJS to 3.3.15

4.1.7 (11 March 2018)¶ ↑

• update UglifyJS to 3.3.14

4.1.6 (08 February 2018)¶ ↑

• update UglifyJS to 3.3.10

• update uglify-es to 3.3.10

4.1.5 (28 January 2018)¶ ↑

• update UglifyJS to 3.3.9

• update uglify-es to 3.3.9

4.1.4 (22 January 2018)¶ ↑

• update UglifyJS to 3.3.8

• update uglify-es to 3.3.8

4.1.3 (7 January 2018)¶ ↑

• update UglifyJS to 3.3.5

4.1.2 (30 December 2017)¶ ↑

• update UglifyJS to 3.3.4

4.1.1 (29 December 2017)¶ ↑

• update UglifyJS to 3.3.3

4.1.0 (28 December 2017)¶ ↑

• update UglifyJS to 3.3.2

• cascade compress option is merged into collapse_vars

4.0.2 (10 December 2017)¶ ↑

• update UglifyJS to 3.2.2

• show harmony suggestion when using for-of loops

4.0.1 (3 December 2017)¶ ↑

• update UglifyJS to 3.2.1

4.0.0 (2 December 2017)¶ ↑

• update UglifyJS to 3.2.0

• remove Angular ngInject processing

• add unsafe_math compress option

• add reduce_funcs compress option

• add parse options

• add shebang output option

• add keep_infinity compress option

• add quote_style output option

• add side_effects compress option

• add switches compress option

• more helpful error Message in Harmony mode

Dropped options:

• output: angular

• mangle: except => reserved

• mangle_properties: ignore_quoted => keep_quoted

• enclose

• squeeze, copyright and screw_ie8 options

3.2.0 (9 April 2017)¶ ↑

• experimental ES6/Harmony mode based on UglifyJS2 Harmony branch

• update UglifyJS to 2.8.22

3.1.13 (3 April 2017)¶ ↑

• update UglifyJS to 2.8.21

3.1.12 (31 March 2017)¶ ↑

• update UglifyJS to 2.8.20

3.1.11 (28 March 2017)¶ ↑

• update UglifyJS to 2.8.17

3.1.10 (25 March 2017)¶ ↑

• update UglifyJS to 2.8.16

3.1.9 (19 March 2017)¶ ↑

• update UglifyJS to 2.8.14

3.1.8 (17 March 2017)¶ ↑

• update UglifyJS to 2.8.13

3.1.7 (11 March 2017)¶ ↑

• fix NoMethodError on Uglifier.compile(source, source_map: false) (#114)

• update UglifyJS to 2.8.12

3.1.6 (9 March 2017)¶ ↑

• update UglifyJS to 2.8.11

3.1.5 (8 March 2017)¶ ↑

• update UglifyJS to 2.8.9

3.1.4 (5 March 2017)¶ ↑

• Update UglifyJS to 2.8.7

3.1.3 (2 March 2017)¶ ↑

• update UglifyJS to 2.8.5

• default passes to 1

• allow source_map option to be true instead of a hash

3.1.2 (1 March 2017)¶ ↑

• fix reduce_vars compressor option

• add passes compressor option

• update UglifyJS to 2.8.4

3.1.1 (27 February 2017)¶ ↑

• disable reduce_vars by default as it causes JS errors (#110)

3.1.0 (27 February 2017)¶ ↑

• update UglifyJS to 2.8.0

• add reduce_vars compress option

• enable reduce_vars and collapse_vars compress options by default

• unused top-level function and variable removal with toplevel compress option

• add top_retain compress option to specify list of top-level variables to always retain

• add unsafe_comps and unsafe_proto options

3.0.4 (30 November 2016)¶ ↑

• update UglifyJS to 2.7.5

• implement ignore_quoted and debug options for mangle_properties

3.0.3 (24 October 2016)¶ ↑

• update UglifyJS to 2.7.4

• add wrap_iife output option to wrap IIFEs in parenthesis

3.0.2 (20 August 2016)¶ ↑

• add top-level keep_fnames option that implies both compressor and mangler keep_fnames

• update UglifyJS to 2.7.3

3.0.1 (28 July 2016)¶ ↑

• update UglifyJS to 2.7.0

• split JS dependencies to separate files

3.0.0 (22 March 2016)¶ ↑

• drop support for Ruby 1.8

• remove json as dependency

• discard unused function arguments only in unsafe mode

• add keep_fnames option to preserve function names in compressed code

• add collapse_vars option to collapse single-use variables

• backwards incompatible changes to source map options

• support for inline base64 encoded source maps

• mangle property names option (disabled by default)

• update UglifyJS to 2.6.2

2.7.2 (26 August 2015)¶ ↑

• update UglifyJS to 2.4.24

2.7.1 (27 February 2015)¶ ↑

• fix compatibility with experimental Alaska ExecJS runtime

2.7.0 (8 January 2015)¶ ↑

• copyright comment preservation also includes comments starting with a bang (!)

2.6.1 (1 January 2015)¶ ↑

• update UglifyJS to 2.4.16

2.6.0 (8 December 2014)¶ ↑

• allow metadata to be appended to minified code

2.5.3 (18 July 2014)¶ ↑

• no changes

2.5.2 (18 July 2014)¶ ↑

• update UglifyJS to 2.4.15

2.5.1 (13 June 2014)¶ ↑

• update UglifyJS to 2.4.14

2.5.0 (15 March 2014)¶ ↑

• update UglifyJS to 2.4.13

• process Angular @ngInject annotations

• add keep_fargs option

• change ascii_only default to true

2.4.0 (19 December 2013)¶ ↑

• update UglifyJS to 2.4.8

• add drop_console compress option

2.3.3 (12 December 2013)¶ ↑

• update UglifyJS to 2.4.7

2.3.2 (1 December 2013)¶ ↑

• update UglifyJS to 2.4.6

• document missing mangler and output options

2.3.1 (8 November 2013)¶ ↑

• update UglifyJS to 2.4.3

2.3.0 (26 October 2013)¶ ↑

• use JSON gem instead of multi_json

• update UglifyJS to 2.4.1

• fix issues with some Unicode JS identifiers (#47, #58)

2.2.1 (28 August 2013)¶ ↑

• fix IE8 compatibility

2.2.0 (25 August 2013)¶ ↑

• update UglifyJS to 2.4.0

• add negate_iife compressor option

• escape null characters as x00, so that null followed by number isn't interpreted as octal (#47)

2.1.2 (7 July 2013)¶ ↑

• update UglifyJS to 2.3.6

2.1.1 (18 May 2013)¶ ↑

• fix JScript compatibility

• update UglifyJS to 2.3.4

2.1.0 (8 May 2013)¶ ↑

• update to UglifyJS 2.3.0

• add enclose and screw_ie8 options

2.0.1 (6 April 2013)¶ ↑

• fix compatibility with Sprockets 2.9.0

2.0.0 (6 April 2013)¶ ↑

This release is backwards incompatible for JS compressor options.

• update UglifyJS to 2.2.5

• change compressor arguments to align with UglifyJS2

• compile_with_map: generate source maps for minified code