Notable Differences Between Version 3 And Version 4 - Revision history

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2026-01-29T16:51:37Z

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	== Differences Between Rivendell v3 and Rivendell v4 ==		== Differences Between Rivendell v3 and Rivendell v4 ==

	Rivendell v4 represents a major architectural and functional upgrade over Rivendell v3. Due to foundational changes, Rivendell v4 systems cannot coexist with v3 systems in the same deployment.		Rivendell v4 represents a major architectural and functional upgrade over Rivendell v3. Due to foundational changes, Rivendell v4 systems cannot coexist with v3 systems in the same deployment.<ref group="note">Rivendell v4 workstations cannot interoperate on a live system with v2 or v3 workstations.</ref>

	=== Core Technology Changes ===		=== Core Technology Changes ===

	; Qt Framework Upgrade		; Qt Framework Upgrade
	: Rivendell v4 migrates the entire user interface codebase from Qt4 (used in v3) to Qt5. This change enables long-term maintainability, better high-DPI display support, and dynamic window resizing across applications. [~~1](~~https://groups.io/g/Rivendell/topic/rivendell_v4_0_0rc1/95909272)		: Rivendell v4 migrates the entire user interface codebase from Qt4 (used in v3) to Qt5. This change enables long-term maintainability, better high-DPI display support, and dynamic window resizing across applications.<ref name="v4rc1">[https://groups.io/g/Rivendell/topic/rivendell_v4_0_0rc1/95909272 Rivendell v4.0.0 Release Candidate Announcement]</ref>

	; Database Compatibility		; Database Compatibility
	: Rivendell v4 adds full compatibility with MySQL 8.x in default configurations, addressing incompatibilities present in Rivendell v3 with newer MySQL servers. ~~[1](https:~~/~~/groups.io/g/Rivendell/topic/rivendell_v4_0_0rc1/95909272)~~		: Rivendell v4 adds full compatibility with MySQL 8.x in default configurations, addressing incompatibilities present in Rivendell v3 with newer MySQL servers.<ref name="v4rc1" />

	; Schema Evolution		; Schema Evolution
	: Rivendell v4 introduces new database schema versions (starting at schema 366 and continuing in later v4 releases), requiring mandatory database upgrades when migrating from v3. ~~[1](https:~~/~~/groups.io/g/Rivendell/topic/rivendell_v4_0_0rc1/95909272)~~[~~2](~~https://github.com/ElvishArtisan/rivendell/releases)		: Rivendell v4 introduces new database schema versions (starting at schema 366 and continuing in later v4 releases), requiring mandatory database upgrades when migrating from v3.<ref name="v4rc1" /><ref name="github">[https://github.com/ElvishArtisan/rivendell/releases Rivendell GitHub Releases]</ref>

	=== User Interface and Usability Improvements ===		=== User Interface and Usability Improvements ===

	; RDAirPlay Redesign		; RDAirPlay Redesign
	: The ''RDAirPlay'' module in v4 is completely overhauled, with dynamic resizeability, modernized level meters, and improved visual feedback. In v3, window layouts were largely static. ~~[1](https:~~/~~/groups.io/g/Rivendell/topic/rivendell_v4_0_0rc1/95909272)~~		: The ''RDAirPlay'' module in v4 is completely overhauled, with dynamic resizeability, modernized level meters, and improved visual feedback. In v3, window layouts were largely static.<ref name="v4rc1" />

	; RDPanel Improvements		; RDPanel Improvements
	: In Rivendell v4, ''RDPanel'' supports dynamic resizing and scaling for touchscreen and high-resolution displays, improving usability in live-assist environments compared to v3. ~~[1](https:~~/~~/groups.io/g/Rivendell/topic/rivendell_v4_0_0rc1/95909272)~~		: In Rivendell v4, ''RDPanel'' supports dynamic resizing and scaling for touchscreen and high-resolution displays, improving usability in live-assist environments compared to v3.<ref name="v4rc1" />

	; Date and Time Localization		; Date and Time Localization
	: Rivendell v4 allows site-specific customization of date and time presentation formats, a feature not available in Rivendell v3. ~~[1](https:~~/~~/groups.io/g/Rivendell/topic/rivendell_v4_0_0rc1/95909272)~~		: Rivendell v4 allows site-specific customization of date and time presentation formats, a feature not available in Rivendell v3.<ref name="v4rc1" />

	=== Log Generation and Scheduling ===		=== Log Generation and Scheduling ===

	; Grid Processing Bypass		; Grid Processing Bypass
	: Rivendell v4 adds the ability to disable grid processing on a per-service basis in ''RDLogManager''. This permits complete schedule generation by external music schedulers, which was not possible in Rivendell v3. ~~[1](https:~~/~~/groups.io/g/Rivendell/topic/rivendell_v4_0_0rc1/95909272)~~		: Rivendell v4 adds the ability to disable grid processing on a per-service basis in ''RDLogManager''. This permits complete schedule generation by external music schedulers, which was not possible in Rivendell v3.<ref name="v4rc1" />

	=== PAD, Podcasting, and Data Feeds ===		=== PAD, Podcasting, and Data Feeds ===

	; PAD Data Enhancements		; PAD Data Enhancements
	: Later v4 releases introduce extended PAD (Program-Associated Data) feeds, including additional XML feeds for ~~"next"~~ events. These enhancements expand metadata capabilities beyond those available in Rivendell v3. [~~3](~~https://lwn.net/Articles/969046/)		: Later v4 releases introduce extended PAD (Program-Associated Data) feeds, including additional XML feeds for “next” events. These enhancements expand metadata capabilities beyond those available in Rivendell v3.<ref name="lwn420">[https://lwn.net/Articles/969046/ Rivendell v4.2.0 Released]</ref>

	; Podcast System Improvements		; Podcast System Improvements
	: Rivendell v4 improves podcast provisioning by allowing automated RSS feed creation based on user or group membership, expanding functionality beyond v3’s more manual podcast workflows. ~~[3](https:~~/~~/lwn.net/Articles/969046/)~~		: Rivendell v4 improves podcast provisioning by allowing automated RSS feed creation based on user or group membership, expanding functionality beyond v3’s more manual podcast workflows.<ref name="lwn420" />

	=== Platform and Deployment Changes ===		=== Platform and Deployment Changes ===

	; Operating System Targets		; Operating System Targets
	: Rivendell v4 targets modern Linux distributions such as Ubuntu 22.04 LTS and newer RHEL/Rocky releases, whereas Rivendell v3 supported older distributions. [~~4](~~https://www.paravelsystems.com/rivendell-broadcast-appliance~~)[1~~]~~(https://groups.io/g/Rivendell/topic~~/~~rivendell_v4_0_0rc1~~/~~95909272)~~		: Rivendell v4 targets modern Linux distributions such as Ubuntu 22.04 LTS and newer RHEL/Rocky releases, whereas Rivendell v3 supported older distributions.<ref name="appliance">[https://www.paravelsystems.com/rivendell-broadcast-appliance Rivendell Broadcast Appliance]</ref><ref name="v4rc1" />

	; Incompatibility With v3 Systems		; Incompatibility With v3 Systems
	: Rivendell v4 workstations cannot coexist with Rivendell v3 or v2 systems in the same environment. All workstations must be upgraded simultaneously during migration. ~~[4](https:~~/~~/www~~.~~paravelsystems.com~~/~~rivendell-broadcast-appliance)~~		: Rivendell v4 workstations cannot coexist with Rivendell v3 or v2 systems in the same environment. All workstations must be upgraded simultaneously during migration.<ref name="appliance" /><ref group="note">Mixed-version deployments are not supported at any stage of operation.</ref>

	=== Stability and Maintenance ===		=== Stability and Maintenance ===

	; Bug Fixes and Modernization		; Bug Fixes and Modernization
	: The Rivendell v4 series includes extensive bug fixes, regression resolution, and internal modernization that are not backported to v3, reflecting its status as the actively maintained major release line. ~~[1](https://groups.io/g/Rivendell/topic/rivendell_v4_0_0rc1/95909272)[2](https:/~~/github~~.com/ElvishArtisan/rivendell~~/~~releases)~~		: The Rivendell v4 series includes extensive bug fixes, regression resolution, and internal modernization that are not backported to v3, reflecting its status as the actively maintained major release line.<ref name="v4rc1" /><ref name="github" />

	== Summary ==		== Summary ==

	Rivendell v4 is a mandatory upgrade path for stations requiring modern OS support, MySQL 8 compatibility, improved UI scalability, and ongoing maintenance. While feature-complete, Rivendell v3 is considered legacy and lacks compatibility with current platforms and workflows. ~~[1](https:~~//~~groups.io/g/Rivendell/topic/rivendell_v4_0_0rc1/95909272)[4](https:/~~/~~www.paravelsystems.com~~/~~rivendell-broadcast-appliance)~~		Rivendell v4 is a '''mandatory upgrade path''' for stations requiring modern OS support, MySQL 8 compatibility, improved UI scalability, and ongoing maintenance. While feature-complete, Rivendell v3 is considered legacy and lacks compatibility with current platforms and workflows.<ref name="v4rc1" /><ref name="appliance" />

			== Notes ==
			<references group="note" />

			== References ==
			<references />

Admin: Created page with "== Differences Between Rivendell v3 and Rivendell v4 == Rivendell v4 represents a major architectural and functional upgrade over Rivendell v3. Due to foundational changes, Rivendell v4 systems cannot coexist with v3 systems in the same deployment. === Core Technology Changes === ; Qt Framework Upgrade : Rivendell v4 migrates the entire user interface codebase from Qt4 (used in v3) to Qt5. This change enables long-term maintainability, better high-DPI display support,..."

2026-01-29T16:43:13Z

Created page with "== Differences Between Rivendell v3 and Rivendell v4 == Rivendell v4 represents a major architectural and functional upgrade over Rivendell v3. Due to foundational changes, Rivendell v4 systems cannot coexist with v3 systems in the same deployment. === Core Technology Changes === ; Qt Framework Upgrade : Rivendell v4 migrates the entire user interface codebase from Qt4 (used in v3) to Qt5. This change enables long-term maintainability, better high-DPI display support,..."

New page

== Differences Between Rivendell v3 and Rivendell v4 ==

Rivendell v4 represents a major architectural and functional upgrade over Rivendell v3. Due to foundational changes, Rivendell v4 systems cannot coexist with v3 systems in the same deployment.

=== Core Technology Changes ===

; Qt Framework Upgrade
: Rivendell v4 migrates the entire user interface codebase from Qt4 (used in v3) to Qt5. This change enables long-term maintainability, better high-DPI display support, and dynamic window resizing across applications. [1](https://groups.io/g/Rivendell/topic/rivendell_v4_0_0rc1/95909272)

; Database Compatibility
: Rivendell v4 adds full compatibility with MySQL 8.x in default configurations, addressing incompatibilities present in Rivendell v3 with newer MySQL servers. [1](https://groups.io/g/Rivendell/topic/rivendell_v4_0_0rc1/95909272)

; Schema Evolution
: Rivendell v4 introduces new database schema versions (starting at schema 366 and continuing in later v4 releases), requiring mandatory database upgrades when migrating from v3. [1](https://groups.io/g/Rivendell/topic/rivendell_v4_0_0rc1/95909272)[2](https://github.com/ElvishArtisan/rivendell/releases)

=== User Interface and Usability Improvements ===

; RDAirPlay Redesign
: The ''RDAirPlay'' module in v4 is completely overhauled, with dynamic resizeability, modernized level meters, and improved visual feedback. In v3, window layouts were largely static. [1](https://groups.io/g/Rivendell/topic/rivendell_v4_0_0rc1/95909272)

; RDPanel Improvements
: In Rivendell v4, ''RDPanel'' supports dynamic resizing and scaling for touchscreen and high-resolution displays, improving usability in live-assist environments compared to v3. [1](https://groups.io/g/Rivendell/topic/rivendell_v4_0_0rc1/95909272)

; Date and Time Localization
: Rivendell v4 allows site-specific customization of date and time presentation formats, a feature not available in Rivendell v3. [1](https://groups.io/g/Rivendell/topic/rivendell_v4_0_0rc1/95909272)

=== Log Generation and Scheduling ===

; Grid Processing Bypass
: Rivendell v4 adds the ability to disable grid processing on a per-service basis in ''RDLogManager''. This permits complete schedule generation by external music schedulers, which was not possible in Rivendell v3. [1](https://groups.io/g/Rivendell/topic/rivendell_v4_0_0rc1/95909272)

=== PAD, Podcasting, and Data Feeds ===

; PAD Data Enhancements
: Later v4 releases introduce extended PAD (Program-Associated Data) feeds, including additional XML feeds for "next" events. These enhancements expand metadata capabilities beyond those available in Rivendell v3. [3](https://lwn.net/Articles/969046/)

; Podcast System Improvements
: Rivendell v4 improves podcast provisioning by allowing automated RSS feed creation based on user or group membership, expanding functionality beyond v3’s more manual podcast workflows. [3](https://lwn.net/Articles/969046/)

=== Platform and Deployment Changes ===

; Operating System Targets
: Rivendell v4 targets modern Linux distributions such as Ubuntu 22.04 LTS and newer RHEL/Rocky releases, whereas Rivendell v3 supported older distributions. [4](https://www.paravelsystems.com/rivendell-broadcast-appliance)[1](https://groups.io/g/Rivendell/topic/rivendell_v4_0_0rc1/95909272)

; Incompatibility With v3 Systems
: Rivendell v4 workstations cannot coexist with Rivendell v3 or v2 systems in the same environment. All workstations must be upgraded simultaneously during migration. [4](https://www.paravelsystems.com/rivendell-broadcast-appliance)

=== Stability and Maintenance ===

; Bug Fixes and Modernization
: The Rivendell v4 series includes extensive bug fixes, regression resolution, and internal modernization that are not backported to v3, reflecting its status as the actively maintained major release line. [1](https://groups.io/g/Rivendell/topic/rivendell_v4_0_0rc1/95909272)[2](https://github.com/ElvishArtisan/rivendell/releases)

== Summary ==

Rivendell v4 is a **mandatory upgrade path** for stations requiring modern OS support, MySQL 8 compatibility, improved UI scalability, and ongoing maintenance. While feature-complete, Rivendell v3 is considered legacy and lacks compatibility with current platforms and workflows. [1](https://groups.io/g/Rivendell/topic/rivendell_v4_0_0rc1/95909272)[4](https://www.paravelsystems.com/rivendell-broadcast-appliance)