hugo/docs/content/en/news/0.21-relnotes/index.md

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---
date: 2017-05-22T17:53:58-04:00
categories: ["Releases"]
description: "Hugo 0.21 brings full support for shortcodes per Output Format, the last vital piece of that puzzle"
link: ""
title: "Hugo 0.21"
draft: false
author: bep
Squashed 'docs/' changes from 896bad9f4..e161ea09d e161ea09d Add one more Chinese file to workaround reflect: Zero(nil) b595b3a21 Add more Chinese translation 56e4e95d9 Use lang.Merge to "fill in the gaps" for untranslated pages ef079406c Merge commit '650fac3a4e7d256f4505402ab44cfc3c804b8dea' 650fac3a4 Squashed 'themes/gohugoioTheme/' changes from a1768ebb..f31a3dc8 322eff899 Add Chinese language for menus d90b886e0 Fix Markdown table syntax in previous commit 737f3dfca Update the leaf bundle vs branch bundle table 09fa1bc4e Clarify that `.Now` is obsolete 879ea3f6a Make release notes somewhat more consistent 0113e2051 Move 0.40.2-relnotes into content/en/news 77578f5bf Move content/ into new contentDir content/en/ 4dcf7c709 Fix "reflect: Zero(nil)" error in showcase 63dd25505 Release 0.40.2 2076c0d56 releaser: Prepare repository for 0.41-DEV 070fe565e releaser: Add release notes to /docs for release of 0.40.2 4ce52e913 releaser: Bump versions for release of 0.40.2 41907c487 Fix typos in syntax-highlighting.md 91753ef3d Add missing backtick b77274301 Remove duplicate release notes (0.27, 0.27.1, 0.35) 6e00da316 Remove obsolete content/release-notes/ directory 00a6d8c02 Change en dash back to `--` in 0.38.2-relnotes 51b32dc00 Update archetypes.md d0e5c2307 Release 0.40.1 4538a6d5b releaser: Prepare repository for 0.41-DEV 91b391d70 releaser: Add release notes to /docs for release of 0.40.1 e0979d143 releaser: Bump versions for release of 0.40.1 7983967c2 Clean images fe3fdd77d Polish showcase for Flesland Flis e6dde3989 Showcase - Flesland Flis AS by Absoluttweb 73aa62290 Revive @spf13's special Hugo font add67b335 Release Hugo 0.40 c0a26e5a6 Merge branch 'temp40' beeabaaae releaser: Prepare repository for 0.41-DEV e67d5e985 releaser: Add release notes to /docs for release of 0.40 6cdd95273 releaser: Bump versions for release of 0.40 bee21fb9b Revive the other Hugo logos too 4f45e8fe1 Fix the link type attribute for RSS in examples 8c67dc89a Fix example in delimit doc e7f6c00d5 Revive the logo used on the forum 82b0cd26e Merge commit 'a215abf70e018f4bf40d6c09d8bd148d8684b33d' 119c8ca58 Merge commit 'd2ec1a06df8ab6b17ad05cb008d5701b40327d47' db4683bd2 Improve .Get docs 05260b886 .Get function: fix syntax signature git-subtree-dir: docs git-subtree-split: e161ea09d33e3199f4998e4d2e9068d5a850f042
2018-05-04 03:44:21 -04:00
aliases: [/0-21/]
---
Hugo `0.21` brings full support for shortcodes per [Output Format](https://gohugo.io/extras/output-formats/) ([#3220](https://github.com/gohugoio/hugo/issues/3220)), the last vital piece of that puzzle. This is especially useful for `Google AMP` with its many custom media tags.
This release represents **126 contributions by 29 contributors** to the main Hugo code base. Since last main release Hugo has **gained 850 stars and 7 additional themes**.
Hugo now has:
* 17156+ [stars](https://github.com/gohugoio/hugo/stargazers)
* 457+ [contributors](https://github.com/gohugoio/hugo/graphs/contributors)
* 163+ [themes](http://themes.gohugo.io/)
[@bep](https://github.com/bep) leads the Hugo development with a significant amount of contributions, but also a big shoutout to [@moorereason](https://github.com/moorereason), [@bogem](https://github.com/bogem), and [@munnerz](https://github.com/munnerz) for their ongoing contributions. And as always a big thanks to [@digitalcraftsman](https://github.com/digitalcraftsman) for his relentless work on keeping the documentation and the themes site in pristine condition.
## Other Highlights
On a more technical side, [@moorereason](https://github.com/moorereason) and [@bep](https://github.com/bep) have introduced namespaces for Hugo's many template funcs ([#3042](https://github.com/gohugoio/hugo/issues/3042) ). There are so many now, and adding more into that big pile would be a sure path toward losing control. Now they are nicely categorised into namespaces with its own tests and examples, with an API that the documentation site can use to make sure it is correct and up-to-date.
## Notes
* The deprecated `.Extension`, `.Now` and `.TargetPath` will now `ERROR` [544f0a63](https://github.com/gohugoio/hugo/commit/544f0a6394b0e085d355e8217fc5bb3d96c12a98) [@bep](https://github.com/bep)
* The config settings and flags `disable404`, `disableRSS`, `disableSitemap`, `disableRobotsTXT` are now deprecated. Use `disableKinds`. [5794a265](https://github.com/gohugoio/hugo/commit/5794a265b41ffdeebfd8485eecf65cf4088d49d6) [@bep](https://github.com/bep) [#3345](https://github.com/gohugoio/hugo/issues/3345)
## Enhancements
### Templates
* Log a WARNING on wrong usage of `IsSet` [38661c17](https://github.com/gohugoio/hugo/commit/38661c17bb8c31c9f31ee18f8eba5e3bfddd5574) [@moorereason](https://github.com/moorereason) [#3092](https://github.com/gohugoio/hugo/issues/3092)
* Add support for ellipsed paginator navigator, making paginators with lots of pages more compact [b6ea492b](https://github.com/gohugoio/hugo/commit/b6ea492b7a6325d04d44eeb00a990a3a0e29e0c0) [@bep](https://github.com/bep) [#3466](https://github.com/gohugoio/hugo/issues/3466)
* Add support for interfaces to `intersect` [f1c29b01](https://github.com/gohugoio/hugo/commit/f1c29b017bbd88e701cd5151dd186e868672ef89) [@moorereason](https://github.com/moorereason) [#1952](https://github.com/gohugoio/hugo/issues/1952)
* Add `NumFmt` function [93b3b138](https://github.com/gohugoio/hugo/commit/93b3b1386714999d716e03b131f77234248f1724) [@moorereason](https://github.com/moorereason) [#1444](https://github.com/gohugoio/hugo/issues/1444)
* Add template function namespaces [#3418](https://github.com/gohugoio/hugo/issues/3418) [#3042](https://github.com/gohugoio/hugo/issues/3042) [@moorereason](https://github.com/moorereason) [@bep](https://github.com/bep)
* Add translation links to the default sitemap template [90d3fbf1](https://github.com/gohugoio/hugo/commit/90d3fbf1da93a279cfe994a226ae82cf5441deab) [@rayjolt](https://github.com/rayjolt) [#2569](https://github.com/gohugoio/hugo/issues/2569)
* Allow text partials in HTML templates and the other way around [1cf29200](https://github.com/gohugoio/hugo/commit/1cf29200b4bb0a9c006155ec76759b7f4b1ad925) [@bep](https://github.com/bep) [#3273](https://github.com/gohugoio/hugo/issues/3273)
### Output
* Refactor site rendering with an "output format context". In this release, this is used for shortcode handling only, but this paves the way for future niceness [1e4d082c](https://github.com/gohugoio/hugo/commit/1e4d082cf5b92fedbc60b1b4f0e9d1ee6ec45e33) [@bep](https://github.com/bep) [#3397](https://github.com/gohugoio/hugo/issues/3397) [2bcbf104](https://github.com/gohugoio/hugo/commit/2bcbf104006e0ec03be4fd500f2519301d460f8c) [@bep](https://github.com/bep) [#3220](https://github.com/gohugoio/hugo/issues/3220)
### Core
* Handle `shortcode` per `Output Format` [af72db80](https://github.com/gohugoio/hugo/commit/af72db806f2c1c0bf1dfe5832275c41eeba89906) [@bep](https://github.com/bep) [#3220](https://github.com/gohugoio/hugo/issues/3220)
* Improve shortcode error message [58d9cbd3](https://github.com/gohugoio/hugo/commit/58d9cbd31bcf7c296a39860fd7e566d10faaff28) [@bep](https://github.com/bep)
* Avoid `index.md` in `/index/index.html` [fea4fd86](https://github.com/gohugoio/hugo/commit/fea4fd86a324bf9679df23f8289887d91b42e919) [@bep](https://github.com/bep) [#3396](https://github.com/gohugoio/hugo/issues/3396)
* Make missing `GitInfo` a `WARNING` [5ad2f176](https://github.com/gohugoio/hugo/commit/5ad2f17693a9860be76ef8089c8728d2b59d6b04) [@bep](https://github.com/bep) [#3376](https://github.com/gohugoio/hugo/issues/3376)
* Prevent decoding `pageParam` in common cases [e98f885b](https://github.com/gohugoio/hugo/commit/e98f885b8af27f5473a89d31d0b1f02e61e8a5ec) [@bogem](https://github.com/bogem)
* Ignore non-source files on partial rebuild [b5b6e81c](https://github.com/gohugoio/hugo/commit/b5b6e81c0269abf9b0f4bc6a127744a25344e5c6) [@xofyarg](https://github.com/xofyarg) [#3325](https://github.com/gohugoio/hugo/issues/3325)
* Log `WARNING` only on unknown `/data` files [ab692e73](https://github.com/gohugoio/hugo/commit/ab692e73dea3ddfe979c88ee236cc394e47e82f1) [@bep](https://github.com/bep) [#3361](https://github.com/gohugoio/hugo/issues/3361)
* Avoid processing the same notify event twice [3b677594](https://github.com/gohugoio/hugo/commit/3b67759495c9268c30e6ba2d8c7e3b75d52d2960) [@bep](https://github.com/bep)
* Only show `rssURI` deprecation `WARNING` if it is actually set [cfd3af8e](https://github.com/gohugoio/hugo/commit/cfd3af8e691119461effa4385251b9d3818e2291) [@bep](https://github.com/bep) [#3319](https://github.com/gohugoio/hugo/issues/3319)
### Docs
* Add documentation on slug translation [635b3bb4](https://github.com/gohugoio/hugo/commit/635b3bb4eb873978c7d52e6c0cb85da0c4d25299) [@xavib](https://github.com/xavib)
* Replace `cdn.mathjax.org` with `cdnjs.cloudflare.com` [4b637ac0](https://github.com/gohugoio/hugo/commit/4b637ac041d17b22187f5ccd0f65461f0065aaa9) [@takuti](https://github.com/takuti)
* Add notes about some output format behaviour [162d3a58](https://github.com/gohugoio/hugo/commit/162d3a586d36cabf6376a76b096fd8b6414487ae) [@jpatters](https://github.com/jpatters)
* Add `txtpen` as alternative commenting service [7cdc244a](https://github.com/gohugoio/hugo/commit/7cdc244a72de4c08edc0008e37aec83d945dccdf) [@rickyhan](https://github.com/rickyhan)
### Other
* Embed `Page` in `WeightedPage` [ebf677a5](https://github.com/gohugoio/hugo/commit/ebf677a58360126d8b9a1e98d086aa4279f53181) [@bep](https://github.com/bep) [#3435](https://github.com/gohugoio/hugo/issues/3435)
* Improve the detection of untranslated strings [a40d1f6e](https://github.com/gohugoio/hugo/commit/a40d1f6ed2aedddc99725658993258cd557640ed) [@bogem](https://github.com/bogem) [#2607](https://github.com/gohugoio/hugo/issues/2607)
* Make first letter of the Hugo commands flags' usage lowercase [f0f69d03](https://github.com/gohugoio/hugo/commit/f0f69d03c551acb8ac2eeedaad579cf0b596f9ef) [@bogem](https://github.com/bogem)
* Import `Octopress` image tag in `Jekyll importer` [5f3ad1c3](https://github.com/gohugoio/hugo/commit/5f3ad1c31985450fab8d6772e9cbfcb57cf5cc53) [@buynov](https://github.com/buynov)
## Fixes
### Templates
* Do not lower case template names [6d2ea0f7](https://github.com/gohugoio/hugo/commit/6d2ea0f7d7e8a54b8edfc36e52ff74266c30dc27) [@bep](https://github.com/bep) [#3333](https://github.com/gohugoio/hugo/issues/3333)
### Output
* Fix output format mixup in example [10287263](https://github.com/gohugoio/hugo/commit/10287263f529181d3169668b044cb84e2e3b049a) [@bep](https://github.com/bep) [#3481](https://github.com/gohugoio/hugo/issues/3481)
* Fix base theme vs project base template logic [077005e5](https://github.com/gohugoio/hugo/commit/077005e514b1ed50d84ceb90c7c72f184cb04521) [@bep](https://github.com/bep) [#3323](https://github.com/gohugoio/hugo/issues/3323)
### Core
* Render `404` in default language only [154e18dd](https://github.com/gohugoio/hugo/commit/154e18ddb9ad205055d5bd4827c87f3f0daf499f) [@mitchchn](https://github.com/mitchchn) [#3075](https://github.com/gohugoio/hugo/issues/3075)
* Fix `RSSLink` vs `RSS` `Output Format` [e682fcc6](https://github.com/gohugoio/hugo/commit/e682fcc62233b47cf5bdcaf598ac0657ef089471) [@bep](https://github.com/bep) [#3450](https://github.com/gohugoio/hugo/issues/3450)
* Add default config for `ignoreFiles`, making that option work when running in server mode [42f4ce15](https://github.com/gohugoio/hugo/commit/42f4ce15a9d68053da36f9efcf7a7d975cc59559) [@chaseadamsio](https://github.com/chaseadamsio)
* Fix output formats override when no outputs definition given [6e2f2dd8](https://github.com/gohugoio/hugo/commit/6e2f2dd8d3ca61c92a2ee8824fbf05cadef08425) [@bep](https://github.com/bep) [#3447](https://github.com/gohugoio/hugo/issues/3447)
* Fix handling of zero-length files [0e87b18b](https://github.com/gohugoio/hugo/commit/0e87b18b66d2c8ba9e2abc429630cb03f5b093d6) [@bep](https://github.com/bep) [#3355](https://github.com/gohugoio/hugo/issues/3355)
* Must recreate `Paginator` on live-reload [45c74526](https://github.com/gohugoio/hugo/commit/45c74526686f6a2afa02bcee767d837d6b9dd028) [@bep](https://github.com/bep) [#3315](https://github.com/gohugoio/hugo/issues/3315)
### Docs
* Fix incorrect path in `templates/list` [27e88154](https://github.com/gohugoio/hugo/commit/27e88154af2dd9af6d0523d6e67b612e6336f91c) [@MunifTanjim](https://github.com/MunifTanjim)
* Fixed incorrect specification of directory structure [a28fbca6](https://github.com/gohugoio/hugo/commit/a28fbca6dcfa80b6541f5ef6c8c12cd1804ae9ed) [@TejasQ](https://github.com/TejasQ)
* Fix `bash` command in `tutorials/github-pages-blog` [c9976155](https://github.com/gohugoio/hugo/commit/c99761555c014e4d041438d5d7e53a6cbaee4492) [@hansott](https://github.com/hansott)
* Fix `.Data.Pages` range in example [b5e32eb6](https://github.com/gohugoio/hugo/commit/b5e32eb60993b4656918af2c959ae217a68c461e) [@hxlnt](https://github.com/hxlnt)
### Other
* Fix data race in live-reload close, avoiding some rare panics [355736ec](https://github.com/gohugoio/hugo/commit/355736ec357c81dfb2eb6851ee019d407090c5ec) [@bep](https://github.com/bep) [#2625](https://github.com/gohugoio/hugo/issues/2625)
* Skip `.git` directories in file scan [94b5be67](https://github.com/gohugoio/hugo/commit/94b5be67fc73b87d114d94a7bb1a33ab997f30f1) [@bogem](https://github.com/bogem) [#3468](https://github.com/gohugoio/hugo/issues/3468)