|
| Home | Accessibility | Courses | Diary | The Mouth | Forum | Resources | Site Map | About Us | Contact |
|
Keeping on an even keel
Some (but not all) Open Source products have a numbering system where the second number is even for a production release and odd for a development release - so if you're looking to install one of these products on a live machine for customer use, you should make sure you stick with the even release even if a later odd one is available. Products that currently use this system include: The Linux Kernel (2.2, 2.4 now at 2.6) [learn] Perl (5,6, 5.8, now at 5.10) [learn fundamentals] [learn advanced] [learn for web] Apache httpd (2.0, now at 2.2) [learn] Open Source software has an active developer community, and the mechanism requires that there is considerable exposure given to upcoming releases for things to be added, comments made, and code tested and improved by that community, with anyone welcome to play his / her role. For this reason, you'll see a wide variety of extra releases on all open source software that's almost completely absent from commercial software. Commercial software's upcoming releases need to be kept rather private to give the authors their commercial edge, and also to ensure that orders for the current release don't dry up when potential customers say "I won't spend my money on this version - I'll buy the next one when it comes out". You may still see Apache httpd 1.3, and Perl 5.004 and 5.005, around from time to time. In each of these cases the odd number release was a production version prior to the adoption of the "odd/even" scheme. Apache httpd 1.3 in particular is now extremely mature, but also very commonly used indeed as people don't like to upgrade a web server that's working perfectly well. "If it ain't bust, don't fix it" (written 2008-11-21 05:32:50) Associated topics are indexed under A101 - Web Application Deployment - Linux -An Introduction For UsersA601 - Web Application Deployment - Apache httpd - an overview P701 - What is Perl?
Some other Articles
XML, HTML, XHTML and moreTable Topics Virtual Hosting under Tomcat - an example Every cloud has a silver lining Keeping on an even keel Virtual Hosts and Virtual Servers Comparison - with and without flash Shopping in Melksham Some Linux and Unix tips Melksham Chamber of Commerce and Industry |
1975 posts, page by page
Link to page ... 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40 at 50 posts per pageThis is a page archived from The Horse's Mouth at http://www.wellho.net/horse/ - the diary and writings of Graham Ellis. Every attempt was made to provide current information at the time the page was written, but things do move forward in our business - new software releases, price changes, new techniques. Please check back via our main site for current courses, prices, versions, etc - any mention of a price in "The Horse's Mouth" cannot be taken as an offer to supply at that price.
Link to Ezine home page (for reading).
Link to Blogging home page (to add comments).
PH: 01144 1225 708225 • FAX: 01144 1225 707126 • EMAIL: info@wellho.net • WEB: http://www.wellho.net • SKYPE: wellho