History of Changes

Changes are chronologically ordered from top (most recent) to bottom (least recent)

Changes:

Better XML support for special characters (Tushar Bhatia)
Non-GUI functioning & Non-GUI test plan execution (Tushar Bhatia)
Removing Swing dependence from base JMeter classes
Internationalization (Takashi Okamoto)
AllTests bug fix (neth6@atozasia.com)
ClassFinder bug fix (neth6@atozasia.com)
New Loop Controller
Proxy Server records HTTP samples from browser (and documented in the user manual)
Multipart Form support
HTTP Header class for Header customization
Extracting HTTP Header information from responses (Jamie Davidson)
Mailer Visualizer re-added to JMeter
JMeter now url encodes parameter names and values
listeners no longer give exceptions if their gui's haven't been initialized
HTTPS and Authorization working together
New Http sampling that automatically parses HTML response for images to download, and includes the downloading of these images in total time for request (Neth neth6@atozasia.com)
HTTP responses from server can be parsed for links and forms, and dynamic data can be extracted and added to test samples at run-time (documented)
New Ramp-up feature (Jonathan O'Keefe)
New visualizers (Neth)
New Assertions for functional testing

Fixed saving and loading of test scripts (no more extra lines)
Can save and load special characters (such as "&" and "<").
Can save and load timers and listeners.
Minor bug fix for cookies (if you cookie value contained an "=", then it broke).
URL's can sample ports other than 80, and can test HTTPS, provided you have the necessary jars (JSSE)

Fixed bug that caused cookies not to be read if header name case not as expected.
Clone entries before sending to sampler - prevents relocations from messing up information across threads
Minor bug fix to convenience dialog for adding paramters to test sample. Bug prevented entries in dialog from appearing in test sample.
Added xerces.jar to distribution
Added junit.jar to distribution and created a few tests.
Started work on new framework. New files in cvs, but do not effect program yet.
Fixed bug that prevent HTTPJMeterThread from delaying according to chosen timer.

Abstracted out the concept of the Sampler, SamplerController, and TestSample. A Sampler represents code that understands a protocol (such as HTTP, or FTP, RMI, SMTP, etc..). It is the code that actually makes the connection to whatever is being tested. A SamplerController represents code that understands how to organize and run a group of test samples. It is what binds together a Sampler and it's test samples and runs them. A TestSample represents code that understands how to gather information from the user about a particular test. For a website, it would represent a URL and any information to be sent with the URL.
The UI has been updated to make entering test samples more convenient.
Thread groups have been added, allowing a user to setup multiple test to run concurrently, and to allow sharing of test samples between those tests.
It is now possible to save and load test samples.
....and many more minor changes/improvements...

Apache JMeter 1.4.1-dev (Stefano Mazzocchi)

Cleaned up URLSampler code after tons of patches for better readability. (SM)
Made JMeter send a special "user-agent" identifier. (SM)
Fixed problems with redirection not sending cookies and authentication info and removed a warning with jikes compilation. Thanks to Wesley Tanaka for the patches (SM)
Fixed a bug in the URLSampler that caused to skip one URL when testing lists of URLs and a problem with Cookie handling. Thanks to Graham Johnson for the patches (SM)
Fixed a problem with POST actions. Thanks to Stephen Schaub for the patch (SM)

Apache JMeter 1.4 - Jul 11 1999 (Jean-Pierre Norguet, Stefano Mazzocchi)

Fixed a problem with POST actions. Thanks to Brendan Burns for the patch (SM)
Added close button to the About box for those window managers who don't provide it. Thanks to Jan-Henrik Haukeland for pointing it out. (SM)
Added the simple Spline sample visualizer (JPN)

Apache JMeter 1.3 - Apr 16 1999 (Stefano Mazzocchi, Raphaël Luta)

Run the Garbage Collector and run finalization before starting to sampling to ensure same state every time (SM)
Fixed some NullPointerExceptions here and there (SM)
Added HTTP authentication capabilities (RL)
Added windowed sample visualizer (SM)
Fixed stupid bug for command line arguments. Thanks to Jorge Bracer for pointing this out (SM)

Apache JMeter 1.2 - Mar 17 1999 (Sean Dowd, Stefano Mazzocchi)

Apache JMeter 1.1 - Feb 24 1999 (Sean Dowd, Stefano Mazzocchi)

Created the opportunity to create URL aliasing from the properties file as well as the ability to associate aliases to URL sequences instead of single URLs (SM) Thanks to Simon Chatfield for the very nice suggestions and code examples.
Removed the TextVisualizer and replaced it with the much more useful FileVisualizer (SM)
Added the known bug list (SM)
Removed the Java Apache logo (SM)
Fixed a couple of typos (SM)
Added UNIX makefile (SD)

Apache JMeter 1.0.1 - Jan 25 1999 (Stefano Mazzocchi)

Removed pending issues doc issues (SM)
Fixed the unix script (SM)
Added the possibility of running the JAR directly using "java -jar ApacheJMeter.jar" with Java 2 (SM)
Some small updates: fixed Swing location after Java 2(tm) release, license update and small cleanups (SM)

Apache JMeter 1.0 - Dec 15 1998 (Stefano Mazzocchi)