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/META-INF/net.shibboleth.idp/preconfig.xml
3.3 will be loaded before the IdP configuration/META-INF/net.shibboleth.idp/config.xml
3.2 will be loaded after the IdP configuration. This location, introduced in V3.2, is deprecated in V3.3/META-INF/net.shibboleth.idp/postconfig.xml
3.3 will be loaded after the IdP configuration.
Spring WebFlow Configuration 3.3
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