Home Appweb Features Download Licensing
Getting Started Quick Start Installing Appweb Starting and Stopping Running as a Service Release Notes Building from Source Building with CGI Building with FastCGI Building with Proxy Building with OpenSSL Building with PHP
User's Guide Configuring Appweb Configuration Directives Web Frameworks Using Loadable Modules Ports and Binding Routing Requests Request Pipeline Multi-Language Content User Authentication Logging Caching Virtual Hosts Secure Sockets (SSL) Http Client Security Considerations Monitoring and Defending File Upload WebSockets Man Pages
Developer's Guide Embedding Appweb Creating Appweb Modules Creating Appweb Handlers Using the Action Handler Creating Pipeline Stages Serving Pages from ROM Migrating from Earlier Releases
Reference Guide Compatibility Native APIs Appweb Architecture Appweb Memory Allocation Multithreaded Programming HTTP References
Appweb News Appweb Web Site
Samples chroot-server cpp-handler cpp-module deploy-server esp-hosted esp-upload login-basic login-database max-server min-server secure-server simple-action simple-client simple-handler simple-module simple-server spy-filter ssl-server tiny-server typical-server websockets-chat websockets-echo websockets-output
Links Embedthis Web Site Embedthis Blog Twitter
Embedthis Appweb Site Appweb News Blog Twitter
Home
/
Reference
/
Compatibility

Compatibility

Appweb APIs may evolve, and are thus subject to change between minor releases. The Appweb documentation provides a Stability Classification for each API group that reflects their stability with respect to forward changes.

Migrating from Earlier Releases

Appweb 4 to 7 are highly compatible. Code written for Appweb 4 to 6 should migrate easily to Appweb 7. Appweb 4 introduced new build tools, and a garbage collector for memory allocation, so if you are migrating from Appweb 2 or 3, you will have to perform more significant changes to your application, handlers or filters.

Migrating to Appweb 8

Appweb 8 introduced support for HTTP/2 which necessitates some API changes. These changes are mostly syntax and naming. The logic of ESP, PHP and CGI applications should not require changes.

See Upgrading Earlier Releases for more information.

Standards

Appweb supports the following standards:

© Embedthis Software. All rights reserved.