Editing Plone (software) (section)

===Release history===
{| class="wikitable sortable" style="width: 70%"
|-
! style="width: 5%" | Version
! data-sort-type="date" style="width: 10%" | Release date
! style="width: 5%" | Development time (days) <!-- Default half of the year, i.e. 1st of July (e.g. 1999-07-01) -->
! style="width: 50%" class="unsortable" | Notes and significant changes
|-
| 0.1
| October 4, 2001
| 
| Initial public release
|-
| 1.0
| February 6, 2003
| style="text-align: center" | {{age in days|2001|10|04|2003|02|06}}
| First stable release
|-
| 2.0
| March 23, 2004
| style="text-align: center" | {{age in days|2003|02|06|2004|03|23}}
| 
|-
| 2.1
| September 6, 2005
| style="text-align: center" | {{age in days|2004|03|23|2005|09|06}}
| 
|-
| 2.5
| September 19, 2006
| style="text-align: center" | {{age in days|2005|09|06|2006|09|19}}
| 
|-
| 3.0
| August 21, 2007
| style="text-align: center" | {{age in days|2006|09|19|2007|08|21}}
| 
|-
| 3.1
| May 2, 2008
| style="text-align: center" | {{age in days|2007|08|21|2008|05|02}}
| 
|-
| 3.2
| February 7, 2009
| style="text-align: center" | {{age in days|2008|05|02|2009|02|07}}
| 
|-
| 3.3
| August 19, 2009
| style="text-align: center" | {{age in days|2009|02|07|2009|08|19}}
| 
|-
| 4.0
| September 1, 2010
| style="text-align: center" | {{age in days|2009|08|19|2010|09|01}}
| Infrastructure improvements increasing performance and reducing resource use, new base theme, more efficient blob storage, overlays, fit and polish.
|-
| 4.1
| August 8, 2011
| style="text-align: center" | {{age in days|2010|09|01|2011|08|08}}
| Configuration registry, improved commenting system, more versatile caching, more detailed security roles.
|-
| 4.2
| July 5, 2012
| style="text-align: center" | {{age in days|2011|08|08|2012|07|05}}
| Diazo [[Theme (computing)|theming]] system, [[HTML5]], Python 2.7, improved collections, improved search.
|-
| 4.3
| April 13, 2013
| style="text-align: center" | {{age in days|2012|07|05|2013|04|13}}
| Dexterity Content Type development system, [[Kupu]] removal, KSS removed, Password API, Improved Syndication, [[NewsML]], TTW Theme Editor
|-
| 5.0
| September 28, 2015
| style="text-align: center" | {{age in days|2013|04|13|2015|09|28}}
| Simpler, faster Dexterity as the new default content type framework. Theming is made easier with Diazo. The Chameleon rendering engine improves response times by 15 to 30 percent. A modern series of form widgets have been created with usability and accessibility in mind.
|-
| 5.1
| May 1, 2018
| style="text-align: center" | {{age in days|2015|09|28|2018|05|01}}
| Release notes<ref>{{Cite web |title=Plone 5.1 |url=https://plone.org/download/releases/5.1 |access-date=2023-09-30 |website=plone.org |language=en}}</ref>
|-
| 5.2
| July 19, 2019
| style="text-align: center" | {{age in days|2018|05|01|2019|07|19}}
| Python 3 support, Inclusion of plone.restapi and more.<ref>{{Cite web |title=Plone 5.2 |url=https://plone.org/download/releases/5.2 |access-date=2023-09-30 |website=plone.org |language=en}}</ref>
|-
| 6.0
| December 12, 2022
| style="text-align: center" | {{age in days|2019|07|19|2022|12|12}}
| Headless CMS with React frontend.<ref>[https://plone.org/download/releases/6.0 Unknown]{{Dead link | date=April 2025 | fix-attempted=yes}}</ref> 
|}
<!-- Please add minor version dates e.g. 1.2 || 2001-02-02, 2.2 || 2005-02-02 -->