Editing Worldwide Developers Conference (section)

===1990s===

==== 1991 ====
In 1991, WWDC saw the first public demonstration of [[QuickTime]].<ref>{{Cite news|url=https://www.theregister.co.uk/2011/12/02/apple_quicktime_multimedia_software_turns_20/|title=Happy birthday, Apple QuickTime|access-date=2018-06-06|language=en|archive-date=May 10, 2019|archive-url=https://web.archive.org/web/20190510101057/https://www.theregister.co.uk/2011/12/02/apple_quicktime_multimedia_software_turns_20/|url-status=live}}</ref>

==== 1995 ====
In 1995, WWDC'95 focused almost fully on the ''[[Copland (operating system)|Copland]]'' project,<ref>{{cite web|title=Apple Unveils Next Generation of Mac OS to Developers |url=http://product.info.apple.com/pr/press.releases/1995/q3/950508.pr.rel.copland.html |access-date=September 21, 2016 |work=apple.com|archive-url=https://web.archive.org/web/19990506022846/http://product.info.apple.com/pr/press.releases/1995/q3/950508.pr.rel.copland.html |archive-date=May 6, 1999 |url-status=dead}}</ref> which by this time was able to be demonstrated to some degree. [[Gil Amelio]] stated that the system was on-schedule to ship in beta form in later summer with an initial commercial release in the very late fall. However, very few ''live'' demos were offered, and no beta of the operating system was offered.

==== 1996 ====
In 1996, WWDC'96's primary emphasis was a new software component technology called ''[[OpenDoc]]'',<ref>{{cite web|title=Apple Worldwide Developers Conference Convenes |url=http://product.info.apple.com/pr/press.releases/1996/q3/960513.pr.rel.wwdc.html |website=apple.com |access-date=September 21, 2016 |archive-url=https://web.archive.org/web/19990505160323/http://product.info.apple.com/pr/press.releases/1996/q3/960513.pr.rel.wwdc.html |archive-date=May 5, 1999 |url-status=dead}}</ref> which allowed end users to compile an application from components offering features they desired most. The OpenDoc consortium included Adobe, Lotus, others, and Apple. Apple touted OpenDoc as the future foundation for application structure under Mac OS. As proof of concept, Apple demonstrated a new end-user product called [[Cyberdog]], a comprehensive Internet application component suite offering users an integrated browser, email, FTP, telnet, finger and other services built fully of user-exchangeable OpenDoc components. ''ClarisWorks'' (later renamed ''[[AppleWorks]]''), a principal product in Apple's wholly owned subsidiary ''[[Claris]] Corporation'', was demonstrated as an example of a pre-OpenDoc component architecture application modified to be able to contain functional OpenDoc ''[[Component-based software engineering|components]]''.

==== 1997 ====
In 1997, WWDC marked the return of Steve Jobs as a consultant,<ref name=":0">{{Cite news|last=Tynan|first=Dan|date=June 5, 2015|title=Apple's Developers Conference: Best, Worst, and Weirdest Moments|language=en-US|work=Yahoo Tech|url=https://www.yahoo.com/tech/apples-developers-conference-best-worst-and-120788821689.html|url-status=dead|access-date=2017-06-03|archive-url=https://web.archive.org/web/20150819043707/https://www.yahoo.com/tech/apples-developers-conference-best-worst-and-120788821689.html|archive-date=2015-08-19}}</ref> and his famous reaction to an insult by a developer.<ref>{{cite web|title=Steve Jobs' reaction to this insult shows why he was such a great CEO |url=https://www.businessinsider.com/steve-jobs-reaction-to-insult-2015-10?r=US&IR=T |website=[[Business Insider]] |access-date=December 21, 2021}}</ref> WWDC'97 was the first show after the purchase of [[NeXT]], and focused on the efforts to use [[OPENSTEP]] as the foundation of the next Mac OS. The plan at that time was to introduce a new system then named ''[[Rhapsody (operating system)|Rhapsody]]'', which would consist of a version of OPENSTEP modified with a more Mac-like [[look and feel]], the ''[[Cocoa (API)|Yellow Box]]'', along with a ''[[Classic (Mac OS X)|Blue Box]]'' that allowed extant Mac applications to run under OS emulation. The show focused mainly on the work in progress, including a short history of development efforts since the two development teams had been merged on February 4. Several new additions to the system were also demonstrated, including tabbed and outline views, and a new object-based graphics layer (NSBezier).{{Citation needed|date=January 2020|reason=NSBezierPath is a class for drawing beziers; NSBezier does not seem to exist, and isn't a "graphics layer"}}

==== 1998 ====
In 1998, in response to developer comments about the new operating system, the ''big announcement'' at WWDC'98 was the introduction of ''[[Carbon (API)|Carbon]]'', effectively a version of the [[classic Mac OS]] API implemented on [[OpenStep]]. Under the original Rhapsody plans, classic applications would run in sandboxed installation of the classic Mac OS, (called the Blue Box) and have no access to the new Mac OS X features.  To receive new features, such as protected memory and preemptive multitasking, developers had to rewrite applications using the Yellow Box API. Developer complaints about the major porting effort to what was then a shrinking market and warnings that they might simply abandon the platform, led Apple to reconsider the original plan. Carbon addressed the problem by dramatically reducing the effort needed, while exposing some of the new functions of the underlying OS. Another major introduction at WWDC'98 was the [[Quartz 2D|Quartz]] imaging model, which replaced [[Display PostScript]] with something akin to ''display [[PDF]]''. Although the reasons for this switch remain unclear, Quartz also included better support for the extant [[QuickDraw]] model from the classic OS, and (as later learned) [[Java2D]]. Supporting QuickDraw directly in the graphics model also led to a related announcement, that the Blue Box would now be ''invisible'', integrated into the extant desktop, instead of a separate window.

==== 1999 ====
In 1999, WWDC'99 was essentially a ''progress report'' as the plans outlined in WWDC'98 came to fruition. Three major announcements were the ''opening'' of the operating system underlying the new OS as ''[[Darwin (operating system)|Darwin]]'', improvements to the [[Macintosh Finder]], and the replacement of [[QuickDraw 3D]] with [[OpenGL]] as the primary 3D API. The system formerly named ''OpenStep'', and during development termed ''Yellow Box'', was formally renamed ''Cocoa''. 2,563 developers attended.