AEM Dispatcher Release Notes aem-dispatcher-release-notes

Last update: Wed Jul 24 2024 00:00:00 GMT+0000 (Coordinated Universal Time)

Topics:
Dispatcher

CREATED FOR:

Admin

Release Information release-information

Products

Adobe Experience Manager (AEM) Dispatcher

Version

4.3.7

Type

Minor Release

Date

March 27, 2024

Download URL

Apache 2.4
Microsoft® Internet Information Services (IIS)

Compatibility

AEM 6.1 or higher

System requirements and prerequisites system-requirements-and-prerequisites

See Supported Platforms for more information about requirements and prerequisites.

Adobe recommends using the latest version of AEM Dispatcher to benefit from the latest functionality, the most recent bug fixes, and the best possible performance.

Installation instructions installation-instructions

For detailed instructions, see Installing Dispatcher.

Release History release-history

Release 4.3.7 (2024-March-27) march

Improvements:

DISP-1009 - setting header length again
DISP-1013 - add Openssl 3.0 support for Linux®
DISP-1014 - response.location processing leading to invalid redirect
DISP-1017 - changing DTD definition

Release 4.3.6 (2023-July-25) jyly

Improvements:

DISP-911 AEM‑05 - X‑Edge‑Key can be leaked in disp_apache2.c.
DISP-937 logging all selectors.
DISP-998 making loading of vanity urls at startup configurable.

Release 4.3.5 (2022-Apr-04) apr

Improvements:

DISP-954 - Support invalidation even if expiration has not passed
DISP-949 - Dispatcher returns 200 instead of 404 even if filter blocks POST request

Release 4.3.4 (2021-Nov-29) nov

Bug Fixes:

DISP-833 - X-Forwarded-Host headers may contain a list of comma-separated hostnames.
DISP-835 - DispatcherUseForwardedHost absorbs the Host header if it comes last.

Improvements:

DISP-874 - Creates a Dispatcher configuration to turn implementation of DISP-818 either On or Off through a flag DispatcherRestrictUncacheableContent. The default value is Off. When On, it removes any caching headers set by mod expires for uncacheable content. This setting is different from the behavior found in version 4.3.3 (where the default was On) but the same as versions earlier than 4.3.3 (where the default was Off). Keeping DispatcherRestrictUncacheableContent’s default Off is the recommended approach so the browser cache has more flexibility. When upgrading from version 4.3.3 to 4.3.4, if you want to keep the same behavior as in version 4.3.3, you must explicitly set DispatcherRestrictUncacheableContent to On.
DISP-841 - Dispatcher doesn’t respect /serverStaleOnError for 504 response code
DISP-874 - Create a Dispatcher configuration to turn implementation of DISP-818 on or off
DISP-883 - Trace showing URL request Decomposition in Dispatcher
DISP-944 - preload vanity urls

Release 4.3.3 (2019-Oct-18) october

Bug Fixes:

DISP-739 - LogLevel Dispatcher: level doesn’t work
DISP-749 - Alpine Linux® Dispatcher crashes with trace log level

Improvements:

DISP-813 - Support in Dispatcher for openssl 1.1.x
DISP-814 - Apache 40x errors during cache flushes
DISP-818 - mod_expires adds Cache-Control headers for uncacheable content
DISP-821 - Do not store log context in the socket
DISP-822 - Dispatcher should use ppoll instead of pselect
DISP-824 - Secure DispatcherUseForwardedHost
DISP-825 - Log a special message when there’s no more space on the disk
DISP-826 - Supports refetch URIs with a query string

New Features:

DISP-703 - Farm Specific Cache Hit Ratio
DISP-827 - Local server for testing
DISP-828 - Create testing docker image for Dispatcher

Release 4.3.2 (2019-Jan-31) jan

Bug Fixes:

DISP-734 - Dispatcher causes crash in insert_output_filter if not set as handler
DISP-735 - REs do not work on Alpine Linux®
DISP-740 - Loading Dispatcher in macOS Mojave is disabled by default
DISP-742 - Blocked requests may leak information to auth checker protected resources

Improvements:

DISP-746 - Unlabeled strings in dispatcher.any should generate a warning

New Feature:

DISP-747 - Provide request information in the Apache environment

Release 4.3.1 (2018-Oct-16) oct

Bug Fixes:

DISP-656 - Dispatcher serves wrong ETag Header
DISP-694 - Suppress warnings when keep alive connections go stale
DISP-714 - Cookie based session management doesn’t work in IIS
DISP-715 - Secure flag for renderid cookie
DISP-720 - Temporary files not closed, can lead to exhaustion (too many open files)
DISP-721 - Dispatcher interrupts poll() when Apache gracefully restarts child
DISP-722 - Cache files are created with octal mode 0600
DISP-723 - Implicit 10 minute timeout (and retry) when Render timeouts set to 0
DISP-725 - Trailing characters after strings are silently converted to an unnamed value
DISP-726 - Log a warning when no farm actually matches the incoming host
DISP-727 - Dispatcher checks request content length for empty cache files
DISP-730 - 404 when trying to access a header file over Dispatcher
DISP-731 - Dispatcher is vulnerable to Log Injection
DISP-732 - Dispatcher should remove consecutive ‘/’ in the URL
DISP-733 - Dispatcher should set (calculate) an Age Header

Improvements:

DISP-656 - Dispatcher serves wrong ETag Header
DISP-694 - Suppress warnings when keep alive connections go stale
DISP-715 - Secure flag for renderid cookie
DISP-722 - Cache files are created with octal mode 0600
DISP-726 - Log a warning when no farm actually matches the incoming host

Release 4.3.0 (2018-Jun-13) jun

Bug Fixes:

DISP-682 - Numeric Log Level Incorrectly Applied
DISP-685 - 32-bit Solaris™ SPARC® binaries have an undefined reference to __divdi3
DISP-688 - Dispatcher doesn’t return “X-Cache-Info” header on 404 response
DISP-690 - Last-Modified header is not cacheable
DISP-691 - Access Violations in w3wp.exe
DISP-693 - Need to update Architectural details for Solaris™ servers on Dispatcher download page
DISP-695 - Issue with DispatcherLog level in Dispatcher module 4.2.3
DISP-698 - Dispatcher TTL needs to support s-maxage and private directives
DISP-700 - Module does not work correctly on Alpine Linux®
DISP-704 - Browser requests containing %2b are sent to the Publisher unencoded
DISP-705 - Dispatcher crash due to double free or corruption (fasttop)
DISP-706 - During invalidation, the Dispatcher is following back reference symlinks that can cause an infinite loop
DISP-709 - Block some vanity URL extensions
DISP-710 - Builds for Linux® not usable on Cent OS 6