| July 2020  | 
                           
                              
                            | 
                        
                        
                           | Sept 2020 | 
                           
                              							
                              
                                 - Directs customers to release notes for licensed
									features.
 
                                 - Adds content for S-Cz8.4.0p2.
 
                                 - Adds EVS for the SRVCC topic.
 
                               
                              						
                            | 
                        
                        
                           | October 2020 | 
                           
                              							
                              
                                 - Adds BFD content in the System Configuration
									chapter to describe bidirectional forwarding detection.
 
                                 - Adds Local User Accounts in the User Accounts
									section of the Getting Started chapter to describe adding and
									managing local accounts.
 
                                 - Updated Configure an SDES Profile in the SRTP for
									Software section of the Security chapter to describe the new
									ciphers available.
 
                               
                              						
                            | 
                        
                        
                           | November 2020 | 
                           
                              							
                              
                                 -  Updates inclusive language.
 
                                 - Updates "Export a PKCS#12 File" section in the TLS
									chapter.
 
                                 - Updates "Import a PKCS#12 File" section in the TLS
									chapter.
 
                                 - Adds "Cluster Member Graceful Shutdown" to the
									System Configuration chapter.
 
                               
                              						
                            | 
                        
                        
                           | December 2020 | 
                           
                              							
                              
                                 - Removes old content for ssh keys and inserts in the
									"Manage SSH Keys" section.
 
                               
                              						
                            | 
                        
                        
                           | March 2021 | 
                           
                              							
                              
                                 - In 840p3 and later, the new local-accounts command
									replaces the old ssh-password command. Users running 840p1 and
									840p2 may still use ssh-password, but should plan to migrate to
									local-accounts when they upgrade to 840p3 or later.
 
                                 - Corrects values for the sti-attest parameter.
 
                                 - Adds detail in TLS Notifications for Certificate
									Expiration regarding the 
										local-cert-exp-trap-int parameter.
                                 
 
                                 - Clarifies HIP configuration descriptions.
 
                                 - Corrects statement on add-codecs effect on codec
									offer order.
 
                                 - Notes to clarify absence of support for HMU with
									RTCP and RTCP, and explain how 2 instances of the same SSRC can
									trigger HMU.
 
                                 - Adds explanation of PT check and reuse of that PT,
									when applicable.
 
                                 - Clarifies the reinvite-trying option's
									functionality.
 
                                 - Clarifies RBT media file specifications.
 
                                 - Adds unique-sdp-id option information to the
									context of RBT.
 
                               
                              						
                            | 
                        
                        
                           | April 2021 | 
                           
                              							
                              
                                 - Adds the "Configuration Assistant Operations"
									section to the Getting Started chapter.
 
                                 - Removes references to /var in the SPL chapter.
 
                                 - Clarifies the process to import and export CSV
									config files.
 
                                 - Adds configuration consideration for DTML and KPML
									interworking.
 
                                 - Adds ACL configuration consideration where
									incorrect syntax can result in unintended behavior.
 
                                 - Corrects step 2 of core side initiated call
									handling behavior description for the "Support for SBC Behind
									NAT" SPL.
 
                                 - Corrects LRT syntax for DID range-based LRT.
 
                               
                              						
                            | 
                        
                        
                           | June 2021 | 
                           
                              							
                              
                                 - Corrects ptimes for G.722 for vSBC.
 
                                 - Corrects ptimes for EVRC1 and EVRCB1.
 
                                 - Clarifies session translation on out-of-dialog
									messages.
 
                                 - Clarifies TLS profile requirement under
									STIR/SHAKEN.
 
                                 - Clarifies how remote site survivability handles
									multiple identities when entering survivable mode.
 
                                 - Removes reference to a deprecated SRR feature.
 
                               
                              						
                            | 
                        
                        
                           | August 2021 | 
                           
                              							
                              
                                 - Adds a constraint when using SIP REFER from a
									realm-config.
 
                                 - Updates the "Configuration Assistant Operations"
									section in the "Getting Started" chapter to reflect changes in
									the Configuration Assistant work flow for SC-z8.4.0p7.
 
                               
                              						
                            | 
                        
                        
                           | November 2021 | 
                           
                              
                                 - Updates for Outgoing Flows in Secure and Non-Secure
									in the Same Realm section in the Security chapter.
 
                                 - Updates for transport-method in Configuring Session
									Agents section.
 
                                 - Updates for T.140 to Baudot Relay Examples in T.140
									to Baudot Relay section.
 
                                 - Adds the Caution statement about confguration
									erasure to the "Configuration Assistant Work Flow and Checklist"
									topic.
 
                               
                            | 
                        
                        
                           | December 2021 | 
                           
                              							
                              
                                 - Adds the SC-z8.4.0p8 "actpass" feature.
 
                               
                              						
                            | 
                        
                        
                           | February 2022 | 
                           
                              							
                              
                                 - Corrects the maximum value of
									tcp-number-of-ports-per-flow to 4
 
                                 - Removes DTLS SRTP Profile from Configure Advanced
									Media Termination in Realm Config section.
 
                                 - Adds a message for notify berpd
										force command in Manual Switchovers section,
									applicable for S-Cz8.4.0p7 and above.
                                 
 
                                 - Adds a save and activate during entitlement
									setup
 
                                 - Adds note about SBC not supporting multiple m lines
									with KPML - 2833 interworking in KPML to RFC2833 section.
 
                                 - Updates details about sequence number in HMU Support
									for RTP to SRTP Interworking section.
 
                                 - Adds allowed-ssrc-change-limit under realm-config in
									SRTP under Security.
 
                                 -  Adds a note about
										add-sdp-baseBehavior option in
									ensuring telephone event negotiation within delayed media and
									conflicting configurations section.
                                 
 
                                 - Corrects rtcp-mux in Configure Advanced Media
									Termination in Realm Config section.
 
                                 - Adds information about license required in
									transcoding call for virtual SBC in RTCP Generation Platform
									Support section. 
 
                                 - Adds note about reboot in QoS Configuration
									section.
 
                                 -  Removes Static flow policing under policing
									methods as SBC no longer supports static flows.
 
                                 - Removes Media Policing Configuration for Static
									Flows under security as SBC no longer supports static
									flows.
 
                               
                              						
                            | 
                        
                        
                           | March 2022 | 
                           
                              
                                 - Updates value for max-incoming-conns in Denial of
									Service TLS section and DoS protection for TLS Connections
									section for S-Cz8.4.0p5 and above.
 
                                 - Adds information that the Host routes to IPv6
									addresses do not support a netmask in Host Route section.
 
                                 - Adds strip-restored-sdp option is enabled by
									default starting S-Cz8.4.0 and above in Ensuring Compliant SDP
									Management for P-Early Media Call Flows section.
 
                                 -  Adds session agent group naming support in session
									routing and load balancing section.
 
                                 - Adds recommendation about local-port-match-max in
									Security Policy Configuration section.
 
                                 - Adds note about transcoding capacity for all
									supporting codec in transcodable details section.
 
                                 -  Adds note about RTP media-sec-policy in the
									Single-Ended SRTP Termination Configuration section. 
 
                                 - Adds details about notify fped
										refresh command when you refresh the telephony
									fraud protection file in the High Availability section.
                                 
 
                                 - Adds local-port-match-max and remote-port-match-max
									in Security Policy Configuration in Security chapter.
 
                               
                            | 
                        
                        
                           | June 2022 | 
                           
                              							
                              
                                 - Clarifies sequence for sending queries to the
									primary and backup DNS servers.
 
                                 - Highlights that save and activate are not relevant
									to a standby system in HA pair feature setup procedure.
 
                                 - Updates certificate record config to include limits
									on 'state' field.
 
                                 - Removes ECDSA from PKCS12 note.
 
                               
                              						
                            | 
                        
                        
                           | July 2022 | 
                           
                              							
                              
                                 - Clarified use of add-index in
									translation-rules.
 
                                 - Corrects default tls-version.
 
                                 - Adds limitation that hardware platform SBCs support a maximum of 4 ENUM
									servers.
 
                                 -  Adds a note about sip-dynamic-hnt in Adaptive NHT Configuration section.
                                 
 
                                 - Adds details about min-reg-expire in HNT Configuration section.
                                 
 
                                 - Adds 840p12 IP Prefix feature.
 
                               
                              						
                            | 
                        
                        
                           | October 2022 | 
                           
                              							
                              
                                 - Adds the "Secure Browsing with the HSTS Header" and " Enable the
									HSTS Header" topics to the Web Server TLS Configuration
									chapter.
 
                                 - Adds recommendation on forwarding core
									configuration based on the use of PMD drivers
 
                                 - Updates the "Kill Web <session>" topic
 
                                 - Clarifies the requirement for media-policy for
									setting all DSCP codes on egress, and includes passthrough
									configuration.
 
                               
                              						
                            | 
                        
                        
                           | November 2022 | 
                           
                              
                                 - Updates note about order of codecs in Conditional Codec Policies section.
 
                                 - Corrects use of anonymous-priority in local-policy configuration.
 
                                 - Updates various typographical errors.
 
                                 - Updates "Telephony Fraud Protection Target Matching Rules"
									section to include information about realm precedence.
 
                               
                            | 
                        
                        
                           | February 2023 | 
                           
                              							
                              
                                 - Updates the "MSRP Management Monitoring" topic.
 
                                 - Removes unsupported feature Daylong Transcoding Session Cleanup section from Transcoding chapter.
 
                                 - Updates comfort noise transcoding support details in Supported and Unsupported Platforms and Behavior section in transcoding chapter.
 
                                 - Updates Voice Scenario 3 in Transcoding chapter.
 
                               
                              						
                            |