Simon icon Simon
Flexible server monitoring
About the Release Notes

Want to know what has changed since a previous version? This page lists those changes. You can alter the range of release notes to display if you wish.

The latest general release of Simon is version 4.3.1. The latest beta release is version 5.0b1.

Display from version to version as Including betas

Simon 5.0b1
(Release 5001b): released 2020-09-29; requires macOS 10.12 or later; Big Sur and Catalina compatible

Please Note

Simon now supports syncing via iCloud!

Editor changes for syncing

New Sync preferences

New Sync Setup Assistant

Web service changes

Added a new Simon Status service

Added a new Link Checker filter

Added a new Server Result filter

Added an iMessage notifier

Removed some services and notifiers that are no longer supported

Plus several other improvements

More coming later

Simon 4.3.1
(Release 4034): released 2018-10-08; requires macOS 10.10 or later; Mojave compatible
Simon 4.3
(Release 4033): released 2018-09-19; requires macOS 10.10 or later; Mojave compatible

Mojave dark mode and compatibility

Added the ability to follow or not follow a meta refresh for each test

Several improvements to the pause and auto-pause functions

A number of refinements of services and filters

Updated the default data

Plus many other improvements

Simon 4.3b1
(Release 4032b): released 2018-09-11; requires macOS 10.10 or later; Mojave compatible
Simon 4.2.2
(Release 4031): released 2017-02-28; requires macOS 10.10 or later; Sierra compatible
Simon 4.2.1
(Release 4030): released 2016-10-20; requires macOS 10.10 or later; Sierra compatible
Simon 4.2
(Release 4028): released 2016-02-22; requires macOS 10.10 or later; El Capitan compatible

Added an Exclude Block filter

Added difference analysis filters

New filter variables

Email improvements

Preview improvements

Several fixes of the reports feature

More convenient upgrade licensing

Lots more security and stability improvements

Simon 4.2b4
(Release 4027b): released 2016-02-19; requires macOS 10.10 or later; El Capitan compatible
Simon 4.2b3
(Release 4026b): released 2016-02-18; requires macOS 10.10 or later; El Capitan compatible
Simon 4.2b2
(Release 4025b): released 2016-02-11; requires macOS 10.10 or later; El Capitan compatible
Simon 4.2b1
(Release 4024b): released 2015-12-17; requires macOS 10.10 or later; El Capitan compatible

Added an Exclude Block filter

Email improvements

Several fixes of the reports feature

More convenient upgrade licensing

Lots more stability improvements

Simon 4.1.1
(Release 4022): released 2015-09-18; requires macOS 10.10 or later; El Capitan compatible
Simon 4.1
(Release 4021): released 2015-08-11; requires macOS 10.10 or later

Redesigned Web feature

Web feature support for custom headers

Support for dynamic web content

Various improvements and fixes

Added a crash reporter

Updated localizations

Simon 4.1b7
(Release 4020b): released 2015-08-05; requires macOS 10.10 or later
Simon 4.1b6
(Release 4019b): released 2015-08-05; requires macOS 10.10 or later
Simon 4.1b5
(Release 4018b): released 2015-08-05; requires macOS 10.10 or later
Simon 4.1b4
(Release 4017b): released 2015-07-21; requires macOS 10.10 or later
Simon 4.1b3
(Release 4016b): released 2015-06-29; requires macOS 10.10 or later
Simon 4.1b2
(Release 4015b): released 2015-06-27; requires macOS 10.10 or later

Redesigned Web feature

Web feature support for custom headers

Simon 4.1b1
(Release 4014b): released 2015-06-25; requires macOS 10.10 or later

Support for dynamic web content

Other changes

Simon 4.0.3
(Release 4013): released 2015-03-03; requires macOS 10.10 or later
Simon 4.0.2
(Release 4012): released 2015-01-29; requires macOS 10.10 or later
Simon 4.0.1
(Release 4011): released 2015-01-03; requires macOS 10.10 or later
Simon 4.0
(Release 4010): released 2014-12-17; requires macOS 10.10 or later

Please Note:

Unlimited tests for everyone!

Great new Simon Monitor window design

Attractive new list layouts

Groups

Redesigned editors

Integrated preview, including filter output

Can now hide Simon in the Dock

Password protect access

Enhancements to the Email feature

Added a Context filter

Web feature enhancements

More new default tests, services & filters

A great new app icon

Migration from Simon Express and Simon Free

Other changes

Simon 4.0b9
(Release 4009b): released 2014-12-17; requires macOS 10.10 or later

New default tests, services & filters

Fixes & optimizations in this beta

More in four

Simon 4.0b8
(Release 4008b): released 2014-12-15; requires macOS 10.10 or later

Added new default tests, services & filters

Fixes & optimizations in this beta

More in four

Simon 4.0b7
(Release 4007b): released 2014-12-13; requires macOS 10.10 or later

Shiny new mode & toolbar icons

Fixes & optimizations in this beta

More in four

Simon 4.0b6
(Release 4006b): released 2014-12-12; requires macOS 10.10 or later

Can now hide Simon in the Dock

Password protect access

Fixes & optimizations in this beta

More in four

Simon 4.0b5
(Release 4005b): released 2014-12-08; requires macOS 10.10 or later

Fixes & optimizations in this beta

More in four

Simon 4.0b4
(Release 4004b): released 2014-12-07; requires macOS 10.10 or later

Fixes & optimizations in this beta

More in four

Simon 4.0b3
(Release 4003b): released 2014-11-21; requires macOS 10.10 or later

Fixes in this beta

More in four

Simon 4.0b2
(Release 4002b): released 2014-11-20; requires macOS 10.10 or later

Fixes in this beta

More in four

Simon 4.0b1
(Release 4001b): released 2014-11-18; requires macOS 10.10 or later

Please Note:

Unlimited tests for everyone!

Great new Simon Monitor window design

Attractive new list layouts

Groups

Redesigned editors

Integrated preview, including filter output

Enhancements to the Email feature

Added a Context filter

Web feature enhancements

A great new app icon

Other changes

Simon 3.6.4
(Release 3039): released 2015-01-14; requires macOS 10.6 or later; Yosemite-ready
Simon 3.6.3
(Release 3038): released 2014-12-22; requires macOS 10.6 or later; Yosemite-ready
Simon 3.6.2
(Release 3037): released 2014-12-20; requires macOS 10.6 or later; Yosemite-ready
Simon 3.6.1
(Release 3035): released 2014-01-26; requires macOS 10.6 or later; Mavericks-ready
Simon 3.6
(Release 3034): released 2014-01-15; requires macOS 10.6 or later; Mavericks-ready
Simon 3.6b4
(Release 3033b): released 2014-01-05; requires macOS 10.6 or later; Mavericks-ready
Simon 3.6b3
(Release 3032b): released 2013-12-17; requires macOS 10.6 or later; Mavericks-ready
Simon 3.6b2
(Release 3031b): released 2013-12-02; requires macOS 10.6 or later; Mavericks-ready
Simon 3.6b1
(Release 3030b): released 2013-11-27; requires macOS 10.6 or later; Mavericks-ready
Simon 3.5.1
(Release 3028): released 2013-04-14; requires macOS 10.6 or later; Mountain Lion-ready
Simon 3.5
(Release 3027): released 2013-03-11; requires macOS 10.6 or later; Mountain Lion-ready
Simon 3.5b4
(Release 3026b): released 2013-03-07; requires macOS 10.6 or later; Mountain Lion-ready
Simon 3.5b3
(Release 3025b): released 2013-02-18; requires macOS 10.6 or later; Mountain Lion-ready
Simon 3.5b2
(Release 3024b): released 2013-02-02; requires macOS 10.6 or later; Mountain Lion-ready
Simon 3.5b1
(Release 3023b): released 2013-01-16; requires macOS 10.6 or later; Mountain Lion-ready
Simon 3.4b3
(Release 3022b): released 2012-03-20; requires macOS 10.5 or later; Universal Binary; Lion-ready
Simon 3.4
(Release 3022): released 2012-03-20; requires macOS 10.5 or later; Universal Binary; Lion-ready
Simon 3.4b2
(Release 3021b): released 2012-02-19; requires macOS 10.5 or later; Universal Binary; Lion-ready
Simon 3.4b1
(Release 3020b): released 2012-02-11; requires macOS 10.5 or later; Universal Binary; Lion-ready
Simon 3.3.1
(Release 3019): released 2011-12-13; requires macOS 10.5 or later; Universal Binary; Lion-ready
Simon 3.3
(Release 3018): released 2011-12-06; requires macOS 10.5 or later; Universal Binary; Lion-ready
Simon 3.3b2
(Release 3017b): released 2011-11-27; requires macOS 10.5 or later; Universal Binary; Lion-ready
Simon 3.3b1
(Release 3016b): released 2011-11-14; requires macOS 10.5 or later; Universal Binary; Lion-ready
Simon 3.2.1
(Release 3015): released 2011-10-05; requires macOS 10.5 or later; Universal Binary; Lion-ready
Simon 3.2
(Release 3014): released 2011-08-24; requires macOS 10.5 or later; Universal Binary; Lion-ready
Simon 3.2b5
(Release 3013b): released 2011-08-20; requires macOS 10.5 or later; Universal Binary; Lion-ready
Simon 3.2b4
(Release 3012b): released 2011-07-30; requires macOS 10.5 or later; Universal Binary; Lion-ready
Simon 3.2b3
(Release 3011b): released 2011-07-26; requires macOS 10.5 or later; Universal Binary; Lion-ready
Simon 3.2b2
(Release 3010b): released 2011-07-17; requires macOS 10.5 or later; Universal Binary
Simon 3.2b1
(Release 3009b): released 2011-07-15; requires macOS 10.5 or later; Universal Binary; Snow Leopard-ready
Simon 3.1.1
(Release 3008): released 2011-06-02; requires macOS 10.5 or later; Universal Binary; Snow Leopard-ready
Simon 3.1
(Release 3007): released 2011-05-31; requires macOS 10.5 or later; Universal Binary; Snow Leopard-ready
Simon 3.1b1
(Release 3006b): released 2011-05-27; requires macOS 10.5 or later; Universal Binary; Snow Leopard-ready
Simon 3.0.2
(Release 3005): released 2011-04-04; requires macOS 10.5 or later; Universal Binary; Snow Leopard-ready
Simon 3.0.1
(Release 3004): released 2010-11-30; requires macOS 10.5 or later; Universal Binary; Snow Leopard-ready
Simon 3.0
(Release 3003): released 2010-11-01; requires macOS 10.5 or later; Universal Binary; Snow Leopard-ready

Please Note:

Monitor window:

Editors:

Filters:

Services and Notifiers:

Other:

Simon 3.0b2
(Release 3002b): released 2010-10-28; requires macOS 10.5 or later; Universal Binary; Snow Leopard-ready
Simon 3.0b1
(Release 3001b): released 2010-10-25; requires macOS 10.5 or later; Universal Binary; Snow Leopard-ready

Please Note:

Monitor window:

Editors:

Filters:

Services and Notifiers:

Other:

Simon 2.5.7
(Release 2053): released 2010-05-03; requires macOS 10.4 or later; Universal Binary; Snow Leopard-ready
Simon 2.5.6
(Release 2052): released 2010-03-08; requires macOS 10.4 or later; Universal Binary; Snow Leopard-ready
Simon 2.5.5
(Release 2051): released 2009-11-25; requires macOS 10.4 or later; Universal Binary; Snow Leopard-ready
Simon 2.5.4
(Release 2050): released 2009-11-23; requires macOS 10.4 or later; Universal Binary; Snow Leopard-ready
Simon 2.5.3
(Release 2049): released 2009-09-10; requires macOS 10.4 or later; Universal Binary; Snow Leopard-ready
Simon 2.5.2
(Release 2048): released 2009-06-16; requires macOS 10.4 or later; Universal Binary; Leopard-ready
Simon 2.5.1
(Release 2047): released 2009-02-20; requires macOS 10.4 or later; Universal Binary; Leopard-ready
Simon 2.5
(Release 2046): released 2009-02-15; requires macOS 10.4 or later; Universal Binary; Leopard-ready

Services and Notifiers:

Reports:

Other:

Simon 2.5b2
(Release 2045b): released 2009-01-26; requires macOS 10.4 or later; Universal Binary; Leopard-ready
Simon 2.5b1
(Release 2044b): released 2009-01-19; requires macOS 10.4 or later; Universal Binary; Leopard-ready

Services and Notifiers:

Reports:

Other:

Simon 2.4.2
(Release 2043): released 2008-09-03; requires macOS 10.4 or later; Universal Binary; Leopard-ready
Simon 2.4.1
(Release 2042): released 2008-06-22; requires macOS 10.4 or later; Universal Binary; Leopard-ready
Simon 2.4
(Release 2041): released 2008-05-12; requires macOS 10.4 or later; Universal Binary; Leopard-ready

Monitor window:

Services, Notifiers and Reports:

Variables:

Other:

Simon 2.4b3
(Release 2040b): released 2008-05-02; requires macOS 10.3.9 or later; Universal Binary; Leopard-ready
Simon 2.4b2
(Release 2039b): released 2008-04-28; requires macOS 10.3.9 or later; Universal Binary; Leopard-ready
Simon 2.4b1
(Release 2038b): released 2008-04-22; requires macOS 10.3.9 or later; Universal Binary; Leopard-ready

Monitor window:

Services, Notifiers and Reports:

Variables:

Other:

Simon 2.3.5
(Release 2037): released 2007-11-26; requires macOS 10.3.9 or later; Universal Binary; Leopard-ready
Simon 2.3.4
(Release 2036): released 2007-10-17; requires macOS 10.3.9 or later; Universal Binary
Simon 2.3.3
(Release 2035): released 2007-10-15; requires macOS 10.3.9 or later; Universal Binary
Simon 2.3.2
(Release 2034): released 2007-09-05; requires macOS 10.3.9 or later; Universal Binary
Simon 2.3.1
(Release 2033): released 2007-08-27; requires macOS 10.3.9 or later; Universal Binary
Simon 2.3
(Release 2032): released 2007-07-18; requires macOS 10.3.9 or later; Universal Binary
Simon 2.3b1
(Release 2031b): released 2007-07-10; requires macOS 10.3.9 or later; Universal Binary
Simon 2.2.2
(Release 2030): released 2007-03-23; requires macOS 10.3.9 or later; Universal Binary
Simon 2.2.1
(Release 2029): released 2007-02-19; requires macOS 10.3.9 or later; Universal Binary
Simon 2.2.1b2
(Release 2028b): released 2007-02-15; requires macOS 10.3.9 or later; Universal Binary
Simon 2.2.1b1
(Release 2027b): released 2007-02-12; requires macOS 10.3.9 or later; Universal Binary
Simon 2.2
(Release 2026): released 2007-01-04; requires macOS 10.3.9 or later; Universal Binary

Monitor window:

Script Service:

Basic Service, used by Web (HTTP):

Other Services:

Notifiers:

Variables:

Preferences:

Bug fixes:

Other:

Simon 2.2c7
(Release 2025c): released 2006-12-27; requires macOS 10.3.9 or later; Universal Binary
Simon 2.2c6
(Release 2024c): released 2006-12-14; requires macOS 10.3.9 or later; Universal Binary
Simon 2.2c5
(Release 2023c): released 2006-12-06; requires macOS 10.3.9 or later; Universal Binary
Simon 2.2c4
(Release 2022c): released 2006-11-30; requires macOS 10.3.9 or later; Universal Binary
Simon 2.2c3
(Release 2021c): released 2006-11-27; requires macOS 10.3.9 or later; Universal Binary
Simon 2.2c2
(Release 2020c): released 2006-11-23; requires macOS 10.3.9 or later; Universal Binary
Simon 2.2c1
(Release 2019c): released 2006-11-20; requires macOS 10.3.9 or later; Universal Binary
Simon 2.2b4
(Release 2018b): released 2006-10-16; requires macOS 10.3.9 or later; Universal Binary

Script Service:

Other:

Simon 2.2b3
(Release 2017b): released 2006-09-11; requires macOS 10.3.9 or later; Universal Binary
Simon 2.2b2
(Release 2016b): released 2006-08-02; requires macOS 10.3.9 or later; Universal Binary
Simon 2.2b1
(Release 2015b): released 2006-07-27; requires macOS 10.3.9 or later; Universal Binary
Simon 2.1.1
(Release 2014): released 2006-01-19; requires macOS 10.3.9 or later; Tiger compatible
Simon 2.1
(Release 2013): released 2005-12-15; requires macOS 10.3.9 or later; Tiger compatible

Monitor window:

Reports:

Tests, Services, Notifiers:

Preferences:

Bug fixes:

Other:

Simon 2.1c2
(Release 2012c): released 2005-12-12; requires macOS 10.3.9 or later; Tiger compatible
Simon 2.1c1
(Release 2011c): released 2005-12-08; requires macOS 10.3.9 or later; Tiger compatible
Simon 2.1b3
(Release 2010b): released 2005-11-21; requires macOS 10.3.9 or later; Tiger compatible
Simon 2.1b2
(Release 2009b): released 2005-11-14; requires macOS 10.3.9 or later; Tiger compatible
Simon 2.1b1
(Release 2008b): released 2005-11-08; requires macOS 10.3.9 or later; Tiger compatible
Simon 2.0
(Release 2007): released 2005-08-01; requires macOS 10.3.9 or later; Tiger compatible

Monitor window:

Services & Notifiers:

Source & Preview windows:

Status menu:

Preferences:

Bug fixes:

Other:

Simon 2.0c6
(Release 2006c): released 2005-07-19; requires macOS 10.3.9 or later; Tiger compatible
Simon 2.0c5
(Release 2005c): released 2005-05-19; requires macOS 10.3 or later
Simon 2.0c4
(Release 2004c): released 2005-04-27; requires macOS 10.3 or later
Simon 2.0c3
(Release 2003c): released 2005-03-28; requires macOS 10.3 or later
Simon 2.0c2
(Release 2002c): released 2005-03-16; requires macOS 10.3 or later
Simon 2.0c1
(Release 2001c): released 2005-03-16; requires macOS 10.3 or later
Simon 2.0b4
(Release 1023b): released 2004-12-16; requires macOS 10.3 or later
Simon 2.0b3
(Release 1022b): released 2004-12-13; requires macOS 10.3 or later
Simon 2.0b2
(Release 1021b): released 2004-11-02; requires macOS 10.3 or later
Simon 2.0b1
(Release 1020b): released 2004-07-08; requires macOS 10.3 or later
Simon 1.3b1
(Release 1019b): released 2004-05-03; requires macOS 10.3 or later
Simon 1.2.2
(Release 1018): released 2003-09-26; requires macOS 10.2 or later
Simon 1.2.1
(Release 1017): released 2003-09-03; requires macOS 10.2 or later
Simon 1.2
(Release 1016): released 2003-08-22; requires macOS 10.2 or later
Simon 1.2b3
(Release 1015b): released 2003-08-08; requires macOS 10.2 or later
Simon 1.2b2
(Release 1014b): released 2003-07-29; requires macOS 10.2 or later
Simon 1.2b1
(Release 1013b): released 2003-06-23; requires macOS 10.2 or later
Simon 1.1.2
(Release 1012): released 2003-03-20; requires macOS 10.2 or later
Simon 1.1.1
(Release 1011): released 2003-03-08; requires macOS 10.2 or later
Simon 1.1
(Release 1010): released 2003-03-07; requires macOS 10.2 or later
Simon 1.1b5
(Release 1009b): released 2003-02-21; requires macOS 10.2 or later
Simon 1.1b4
(Release 1008b): released 2003-02-07; requires macOS 10.2 or later
Simon 1.1b3
(Release 1007b): released 2003-01-24; requires macOS 10.2 or later
Simon 1.1b2
(Release 1006b): released 2003-01-21; requires macOS 10.2 or later
Simon 1.1b1
(Release 1005b): released 2002-12-24; requires macOS 10.2 or later
Simon 1.0
(Release 1004): released 2002-12-06; requires macOS 10.1 or later