JDK 8 Release Notes (public releases and revision builds)
JDK 7 Release Notes for public releases
JDK 7 Release Notes for revision builds - available only as commercial offerings to Oracle Customers
Updates to the following release families are available only to Oracle Support customers. To access the latest releases of these families, see the Support Page for pricing.
JDK 6 Release Notes post 6u45, and revision builds of earlier releases
JDK 6 Release Notes through 6u45
JDK 5 Release Notes post 5u22, and revision builds of earlier releases
JDK 5 Release Notes through 5u22