Sourced from uglify-js's releases.

v3.19.3

Bug Fixes

• assignment operator (abefd944eaebfd20d7f01e75353de2c5260bd586, cf87290819d87bfec842503ae655eafeffd5bdb6)
• function call (4a92cdc4807a01bcaba9003a45a0e13c46653a8f)
• function literal (303417cb64f145b52d8162ad2ffb8a48c56aac38)
• property accessor (f34fbb2c36b2fd1cfe38aa12d103cdeb3916c73d, 23f98ba3e19b30bfd47de7c1a4740f8aa442b333, abefd944eaebfd20d7f01e75353de2c5260bd586, cf87290819d87bfec842503ae655eafeffd5bdb6)

v3.19.2

Features

• improve compression of logical expressions (c7152b5e6618089c359d8f6c944572997271cfc9, cd0a8ec757156737a71be697b0cdd4a95a2dd6ab)
• simplify collapsed assignment expressions (76803d6b45421699e201fbc4ee3173af1b1033df)
• convert function literals to arrow functions (22550741b913e3c9fcdc3cf39395a8020c77c5f5)
• support ascii_only on template literals (4661b3472e228c056f273977319009d6103feaff)
• improve generation of Unicode escape sequences (80ebacbf51ccf449d47f5ce5a41fffeae4f9c454)

Bug Fixes

• destructuring syntax (d82b7de5e885da712b43703810a521f22820ee26)
• if statement (69f4e3a419fc1328eacadf89cbbece0497ad8957)
• logical operator (69f4e3a419fc1328eacadf89cbbece0497ad8957)
• optional chaining operator (15c8edb7564a0ab825fce19517f96e8d377a01a8, 8bbbc5178ebee10eb9fa69a706b29f40cc2aa3b9, 69f4e3a419fc1328eacadf89cbbece0497ad8957)
• property accessor (e9cf8deb3352935328671df92ae21bf7b1e8a3b0)
• switch statement (69f4e3a419fc1328eacadf89cbbece0497ad8957)
• try statement (4bf9a4f0954c3fb2b2b2ab9d2def03cebbf0ac7b, 69f4e3a419fc1328eacadf89cbbece0497ad8957)

v3.19.1

Features

• simplify nullish comparison of complex expressions (7a4fb85404f44bbf2e4db5892eb32b698bc53b6e)

Bug Fixes

• if statement (fac0aa2b8aca8605835e604afe8b39903cc89b75)
• switch statement (12475763a60ef92fed1cd625bbb0064c347cc84c, fac0aa2b8aca8605835e604afe8b39903cc89b75)

v3.19.0

Features

• eliminate side-effect-free property access (9c80456634550045b51e921e59deb61e4e1dcab7, 95d3ede664598916e6dced8a5e0f5003efd3c77a, 205a1d1f19cfc128018cfd822c3332e6ee0a831f, 124c4d3fe364c825488528f9d90b68cb3b48178d)
• improve hoist_vars efficiency (ce8ef52e2bcad2747b803faad68ab9c78cadf4d9)
• improve compression around built-in function (8c5a899986e7f66cadd76bfcbd7c017e03508d36)
• improve deconstruction of singular destructuring assignment (8c5a899986e7f66cadd76bfcbd7c017e03508d36)

Bug Fixes

... (truncated)

• 3ea33af v3.19.3
• cf87290 fix corner case in collapse_vars (#5928)
• 4a92cdc fix corner case in collapse_vars (#5926)
• 23f98ba improve fix for #5917 (#5921)
• abefd94 fix corner case in unused (#5920)
• f34fbb2 fix corner case in reduce_vars (#5919)
• 303417c fix corner cases in collapse_vars & reduce_vars (#5916)
• 52b6852 v3.19.2
• 80ebacb generate shorter unicode escape sequence (#5914)
• 69f4e3a fix corner case in reduce_vars (#5913)
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