---
schema_version: "1"
id: 5bde6c30979e75fad188fa5895d6290bb0b956f486f3ceea17e021d573996f87
title: Apex Reference
collection: legacydeveloper
version: current
locale: en-us
portal_url: https://docs.salesforce.com/legacydeveloper/current/en-us/apexcode/apex_link_ref_guide.md
canonical_url: https://developer.salesforce.com/docs/atlas.en-us.apexcode.meta/apexcode/apex_link_ref_guide.htm
source_site: developer.salesforce.com
content_type: documentation
content_hash: 5d414e3241530b9772df76b8eba3de565afa5aa24eae5780ecd570a85efa66fd
description: In Summer ’21 and later versions, Apex reference content is moved to a separate guide called the Apex Reference Guide.
---
# Apex Reference

In Summer ’21 and later versions, Apex reference content is moved to a separate guide called the Apex Reference Guide.

For reference information on Apex classes, interfaces, exceptions and so on, see [Apex Reference Guide](https://developer.salesforce.com/docs/atlas.en-us.264.0.apexref.meta/apexref/apex_ref_guide.htm "HTML (New Window)").