New toFormData helper function that allows the implementor to pass an object and allow axios to convert it to FormData (#3757)
Removed functionality that removed the the Content-Type request header when passing FormData (#3785)
(*) Refactored error handling implementing AxiosError as a constructor, this is a large change to error handling on the whole (#3645)
Separated responsibility for FormData instantiation between transformRequest and toFormData (#4470)
(*) Improved and fixed multiple issues with FormData support (#4448)

QOL and DevX improvements:

Added a multipart/form-data testing playground allowing contributors to debug changes easily (#4465)

Fixes and Functionality:

Refactored project file structure to avoid circular imports (#4515) & (#4516)
Bumped follow-redirects to ^1.14.9 (#4562)

Internal and Tests:

Updated dev dependencies to latest version

Documentation:

Fixing incorrect link in changelog (#4551)

Notes:

(*) Please read these pull requests before updating, these changes are very impactful and far reaching.

`v0.26.1`

Compare Source

0.26.1 (March 9, 2022)

Fixes and Functionality:

Refactored project file structure to avoid circular imports (#4220)

`v0.26.0`

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0.26.0 (February 13, 2022)

Fixes and Functionality:

Fixed The timeoutErrorMessage property in config not work with Node.js (#3581)
Added errors to be displayed when the query parsing process itself fails (#3961)
Fix/remove url required (#4426)
Update follow-redirects dependency due to Vulnerability (#4462)
Bump karma from 6.3.11 to 6.3.14 (#4461)
Bump follow-redirects from 1.14.7 to 1.14.8 (#4473)

`v0.25.0`

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0.25.0 (January 18, 2022)

Breaking changes:

Fixing maxBodyLength enforcement (#3786)
Don't rely on strict mode behaviour for arguments (#3470)
Adding error handling when missing url (#3791)
Update isAbsoluteURL.js removing escaping of non-special characters (#3809)
Use native Array.isArray() in utils.js (#3836)
Adding error handling inside stream end callback (#3967)

Fixes and Functionality:

Added aborted even handler (#3916)
Header types expanded allowing boolean and number types (#4144)
Fix cancel signature allowing cancel message to be undefined (#3153)
Updated type checks to be formulated better (#3342)
Avoid unnecessary buffer allocations (#3321)
Adding a socket handler to keep TCP connection live when processing long living requests (#3422)
Added toFormData helper function (#3757)
Adding responseEncoding prop type in AxiosRequestConfig (#3918)

Internal and Tests:

Adding axios-test-instance to ecosystem (#3786)
Optimize the logic of isAxiosError (#3546)
Add tests and documentation to display how multiple inceptors work (#3564)
Updating follow-redirects to version 1.14.7 (#4379)

Documentation:

Fixing changelog to show corrext pull request (#4219)
Update upgrade guide for https proxy setting (#3604)

Huge thanks to everyone who contributed to this release via code (authors listed below) or via reviews and triaging on GitHub:

Jay
Rijk van Zanten
Kohta Ito
Brandon Faulkner
Stefano Magni
enofan
Andrey Pechkurov
Doowonee
Emil Broman
Remco Haszing
Black-Hole
Wolfram Kriesing
Andrew Ovens
Paulo Renato
Ben Carp
Hirotaka Tagawa
狼族小狈
C. Lewis
Felipe Carvalho
Daniel
Gustavo Sales

`v0.24.0`

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0.24.0 (October 25, 2021)

Breaking changes:

Revert: change type of AxiosResponse to any, please read lengthy discussion here: (#4141) pull request: (#4186)

Huge thanks to everyone who contributed to this release via code (authors listed below) or via reviews and triaging on GitHub:

Jay
Rodry
Remco Haszing
Isaiah Thomason

`v0.23.0`

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0.23.0 (October 12, 2021)

Breaking changes:

Distinguish request and response data types (#4116)
Change never type to unknown (#4142)
Fixed TransitionalOptions typings (#4147)

Fixes and Functionality:

Adding globalObject: 'this' to webpack config (#3176)
Adding insecureHTTPParser type to AxiosRequestConfig (#4066)
Fix missing semicolon in typings (#4115)
Fix response headers types (#4136)

Internal and Tests:

Improve timeout error when timeout is browser default (#3209)
Fix node version on CI (#4069)
Added testing to TypeScript portion of project (#4140)

Documentation:

Rename Angular to AngularJS (#4114)

Huge thanks to everyone who contributed to this release via code (authors listed below) or via reviews and triaging on GitHub:

Jay
Evan-Finkelstein
Paweł Szymański
Dobes Vandermeer
Claas Augner
Remco Haszing
Evgeniy
Dmitriy Mozgovoy

`v0.22.0`

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0.22.0 (October 01, 2021)

Fixes and Functionality:

Caseless header comparing in HTTP adapter (#2880)
Avoid package.json import fixing issues and warnings related to this (#4041), (#4065)
Fixed cancelToken leakage and added AbortController support (#3305)
Updating CI to run on release branches
Bump follow redirects version
Fixed default transitional config for custom Axios instance; (#4052)

Huge thanks to everyone who contributed to this release via code (authors listed below) or via reviews and triaging on GitHub:

Jay
Matt R. Wilson
Xianming Zhong
Dmitriy Mozgovoy

`v0.21.4`

Compare Source

0.21.4 (September 6, 2021)

Fixes and Functionality:

Fixing JSON transform when data is stringified. Providing backward compatibility and complying to the JSON RFC standard (#4020)

Huge thanks to everyone who contributed to this release via code (authors listed below) or via reviews and triaging on GitHub:

Guillaume Fortaine
Yusuke Kawasaki
Dmitriy Mozgovoy

`v0.21.3`

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0.21.3 (September 4, 2021)

Fixes and Functionality:

Fixing response interceptor not being called when request interceptor is attached (#4013)

Huge thanks to everyone who contributed to this release via code (authors listed below) or via reviews and triaging on GitHub:

Julian Hollmann

`v0.21.2`

Compare Source

0.21.2 (September 4, 2021)

Fixes and Functionality:

Updating axios requests to be delayed by pre-emptive promise creation (#2702)
Adding "synchronous" and "runWhen" options to interceptors api (#2702)
Updating of transformResponse (#3377)
Adding ability to omit User-Agent header (#3703)
Adding multiple JSON improvements (#3688, #3763)
Fixing quadratic runtime and extra memory usage when setting a maxContentLength (#3738)
Adding parseInt to config.timeout (#3781)
Adding custom return type support to interceptor (#3783)
Adding security fix for ReDoS vulnerability (#3980)

Internal and Tests:

Updating build dev dependancies (#3401)
Fixing builds running on Travis CI (#3538)
Updating follow rediect version (#3694, #3771)
Updating karma sauce launcher to fix failing sauce tests (#3712, #3717)
Updating content-type header for application/json to not contain charset field, according do RFC 8259 (#2154)
Fixing tests by bumping karma-sauce-launcher version (#3813)
Changing testing process from Travis CI to GitHub Actions (#3938)

Documentation:

Updating documentation around the use of AUTH_TOKEN with multiple domain endpoints (#3539)
Remove duplication of item in changelog (#3523)
Fixing gramatical errors (#2642)
Fixing spelling error (#3567)
Moving gitpod metion (#2637)
Adding new axios documentation website link (#3681, #3707)
Updating documentation around dispatching requests (#3772)
Adding documentation for the type guard isAxiosError (#3767)
Adding explanation of cancel token (#3803)
Updating CI status badge (#3953)
Fixing errors with JSON documentation (#3936)
Fixing README typo under Request Config (#3825)
Adding axios-multi-api to the ecosystem file (#3817)
Adding SECURITY.md to properly disclose security vulnerabilities (#3981)

Huge thanks to everyone who contributed to this release via code (authors listed below) or via reviews and triaging on GitHub:

Sasha Korotkov
Daniel Lopretto
Mike Bishop
Dmitriy Mozgovoy
Mark
Philipe Gouveia Paixão
hippo
ready-research
Xianming Zhong
Christopher Chrapka
Brian Anglin
Kohta Ito
Ali Clark
caikan
Elina Gorshkova
Ryota Ikezawa
Nisar Hassan Naqvi
Jake
TagawaHirotaka
Johannes Jarbratt
Mo Sattler
Sam Carlton
Matt Czapliński
Ziding Zhang

`v0.21.1`

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0.21.1 (December 21, 2020)

Fixes and Functionality:

Hotfix: Prevent SSRF (#3410)
Protocol not parsed when setting proxy config from env vars (#3070)
Updating axios in types to be lower case (#2797)
Adding a type guard for AxiosError (#2949)

Internal and Tests:

Remove the skipping of the socket http test (#3364)
Use different socket for Win32 test (#3375)

Huge thanks to everyone who contributed to this release via code (authors listed below) or via reviews and triaging on GitHub:

Daniel Lopretto <timemachine3030@users.noreply.github.com>
Jason Kwok JasonHK@users.noreply.github.com
Jay jasonsaayman@gmail.com
Jonathan Foster jonathan@jonathanfoster.io
Remco Haszing remcohaszing@gmail.com
Xianming Zhong chinesedfan@qq.com

`v0.21.0`

Compare Source

0.21.0 (October 23, 2020)

Fixes and Functionality:

Fixing requestHeaders.Authorization (#3287)
Fixing node types (#3237)
Fixing axios.delete ignores config.data (#3282)
Revert "Fixing overwrite Blob/File type as Content-Type in browser. (#1773)" (#3289)
Fixing an issue that type 'null' and 'undefined' is not assignable to validateStatus when typescript strict option is enabled (#3200)

Internal and Tests:

Lock travis to not use node v15 (#3361)

Documentation:

Fixing simple typo, existant -> existent (#3252)
Fixing typos (#3309)

Huge thanks to everyone who contributed to this release via code (authors listed below) or via reviews and triaging on GitHub:

Allan Cruz 57270969+Allanbcruz@users.noreply.github.com
George Cheng Gerhut@GMail.com
Jay jasonsaayman@gmail.com
Kevin Kirsche Kev.Kirsche+GitHub@gmail.com
Remco Haszing remcohaszing@gmail.com
Taemin Shin <cprayer13@gmail.com>
Tim Gates tim.gates@iress.com
Xianming Zhong chinesedfan@qq.com

`v0.20.0`

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Release of 0.20.0-pre as a full release with no other changes.

`v0.19.2`

Compare Source

Remove unnecessary XSS check (#2679) (see (#2646) for discussion)

`v0.19.1`

Compare Source

Fixes and Functionality:

Fixing invalid agent issue (#1904)
Fix ignore set withCredentials false (#2582)
Delete useless default to hash (#2458)
Fix HTTP/HTTPs agents passing to follow-redirect (#1904)
Fix ignore set withCredentials false (#2582)
Fix CI build failure (#2570)
Remove dependency on is-buffer from package.json (#1816)
Adding options typings (#2341)
Adding Typescript HTTP method definition for LINK and UNLINK. (#2444)
Update dist with newest changes, fixes Custom Attributes issue
Change syntax to see if build passes (#2488)
Update Webpack + deps, remove now unnecessary polyfills (#2410)
Fix to prevent XSS, throw an error when the URL contains a JS script (#2464)
Add custom timeout error copy in config (#2275)
Add error toJSON example (#2466)
Fixing Vulnerability A Fortify Scan finds a critical Cross-Site Scrip… (#2451)
Fixing subdomain handling on no_proxy (#2442)
Make redirection from HTTP to HTTPS work ([#2426](https://github.com/axios/axios/pull/2426] and (#2547)
Add toJSON property to AxiosError type (#2427)
Fixing socket hang up error on node side for slow response. (#1752)
Alternative syntax to send data into the body (#2317)
Fixing custom config options (#2207)
Fixing set config.method after mergeConfig for Axios.prototype.request (#2383)
Axios create url bug (#2290)
Do not modify config.url when using a relative baseURL (resolves #1628) (#2391)
Add typescript HTTP method definition for LINK and UNLINK (#2444)

Internal:

Revert "Update Webpack + deps, remove now unnecessary polyfills" (#2479)
Order of if/else blocks is causing unit tests mocking XHR. (#2201)
Add license badge (#2446)
Fix travis CI build #2386
Fix cancellation error on build master. #2290 #2207 (#2407)

Documentation:

Fixing typo in CHANGELOG.md: s/Functionallity/Functionality (#2639)
Fix badge, use master branch (#2538)
Fix typo in changelog #2193
Document fix (#2514)
Update docs with no_proxy change, issue #2484 (#2513)
Fixing missing words in docs template (#2259)
Fix request finally documentation in README (#2189)
updating spelling and adding link to docs (#2212)
docs: minor tweak (#2404)
Update response interceptor docs (#2399)
Update README.md (#2504)
Fix word 'sintaxe' to 'syntax' in README.md (#2432)
upadating README: notes on CommonJS autocomplete (#2256)
Fix grammar in README.md (#2271)
Doc fixes, minor examples cleanup (#2198)

`v0.19.0`

Compare Source

Fixes and Functionality:

Unzip response body only for statuses != 204 (#1129) - drawski
Destroy stream on exceeding maxContentLength (fixes #1098) (#1485) - Gadzhi Gadzhiev
Makes Axios error generic to use AxiosResponse (#1738) - Suman Lama
Fixing Mocha tests by locking follow-redirects version to 1.5.10 (#1993) - grumblerchester
Allow uppercase methods in typings. (#1781) - Ken Powers
Fixing .eslintrc without extension (#1789) - Manoel
Consistent coding style (#1787) - Ali Servet Donmez
Fixing building url with hash mark (#1771) - Anatoly Ryabov
This commit fix building url with hash map (fragment identifier) when parameters are present: they must not be added after #, because client cut everything after #
Preserve HTTP method when following redirect (#1758) - Rikki Gibson
Add getUri signature to TypeScript definition. (#1736) - Alexander Trauzzi
Adding isAxiosError flag to errors thrown by axios (#1419) - Ayush Gupta
Fix failing SauceLabs tests by updating configuration - Emily Morehouse

Documentation:

Add information about auth parameter to README (#2166) - xlaguna
Add DELETE to list of methods that allow data as a config option (#2169) - Daniela Borges Matos de Carvalho
Update ECOSYSTEM.md - Add Axios Endpoints (#2176) - Renan
Add r2curl in ECOSYSTEM (#2141) - 유용우 / CX
Update README.md - Add instructions for installing with yarn (#2036) - Victor Hermes
Fixing spacing for README.md (#2066) - Josh McCarty
Update README.md. - Change .then to .finally in example code (#2090) - Omar Cai
Clarify what values responseType can have in Node (#2121) - Tyler Breisacher
docs(ECOSYSTEM): add axios-api-versioning (#2020) - Weffe
It seems that responseType: 'blob' doesn't actually work in Node (when I tried using it, response.data was a string, not a Blob, since Node doesn't have Blobs), so this clarifies that this option should only be used in the browser
Add issue templates - Emily Morehouse
Update README.md. - Add Querystring library note (#1896) - Dmitriy Eroshenko
Add react-hooks-axios to Libraries section of ECOSYSTEM.md (#1925) - Cody Chan
Clarify in README that default timeout is 0 (no timeout) (#1750) - Ben Standefer