Lightning Aura Components Developer Guide
jSummer '26 (API version 67.0)
Spring '26 (API version 66.0)
Winter '26 (API version 65.0)
Summer '25 (API version 64.0)
Spring '25 (API version 63.0)
Winter '25 (API version 62.0)
Summer '24 (API version 61.0)
Spring '24 (API version 60.0)
Winter '24 (API version 59.0)
Summer '23 (API version 58.0)
Spring '23 (API version 57.0)
Winter '23 (API version 56.0)
Summer '22 (API version 55.0)
Spring '22 (API version 54.0)
Winter '22 (API version 53.0)
Summer '21 (API version 52.0)
Spring '21 (API version 51.0)
Winter '21 (API version 50.0)
Summer '20 (API version 49.0)
Spring '20 (API version 48.0)
Winter '20 (API version 47.0)
Summer '19 (API version 46.0)
Spring '19 (API version 45.0)
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Summer '18 (API version 43.0)
Spring '18 (API version 42.0)
Winter '18 (API version 41.0)
Summer '17 (API version 40.0)
Spring '17 (API version 39.0)
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Summer '16 (API version 37.0)
Spring '16 (API version 36.0)
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Summer '15 (API version 34.0)
Spring '15 (API version 33.0)
Winter '15 (API version 32.0)
Developing Secure Code
Testing Components
Enable Secure Browser Caching
Use Lightning CDN to Load Applications Faster
Performance Settings
There are a few Setup settings that can help you to improve application
performance.
-
Enable Secure Browser Caching
Enable secure data caching in the browser to improve page reload performance by avoiding extra round trips to the server. -
Use Lightning CDN to Load Applications Faster
To load Lightning Experience faster, the Lightning content delivery network (CDN) is enabled for your org by default. The Lightning CDN serves static content for the Lightning component framework.