Changes to SIT parameters

This section summarizes the changes to the system initialization parameters across supported CICS® TS releases.

If you are upgrading from an end-of-service release, you can find information about the changes that are relevant to those releases in Summary of changes from end-of-service releases.

Highlights of changes across supported releases of CICS TS

Table 1 lists new, changed, deprecated or removed SIT parameters in each supported CICS TS release.

The links provided for new parameters take you to their reference information in the product documentation.

The links, if provided, for changed, deprecated, or removed parameters take you to the relevant tables below where brief descriptions of the changes are provided.

Tag Service indicates external changes introduced by service APARs.

Table 1. Highlights of SIT changes across supported CICS TS releases
5.6	6.1	6.2	CICS TS 6.3
NEW: None	NEW: EPCDSASZE EPUDSASZE MAXTLSLEVEL PCDSASZE PUDSASZE RESOVERRIDES SDTMEMLIMIT	NEW: CERTEXPIRYWARN INTRDRJOBUSER ZOSMONINTERVAL ZOSSOSNEWTCB ZOSSOS24UNALLOC ZOSSOS31UNALLOC ZOSSOS64UNALLOC	NEW: FIPS OTELTRACE SECURETCPIP
CHANGED: CMDSEC CONFDATA CPSMCONN Service DUMP DUMPSW GMTRAN KEYRING Service TRTABSZ TRTRANSZ	CHANGED: CPSMCONN DTRPGM KEYRING Service MINTLSLEVEL	CHANGED: KEYRING RACFSYNC TRTABSZ XPPT	CHANGED: KEYRING MAXTLSLEVEL MINTLSLEVEL
DEPRECATED: None	DEPRECATED: None	DEPRECATED: None
REMOVED: None	REMOVED: ENCRYPTION	REMOVED: None

Changes to SIT parameters by release of CICS TS

View changes by parameter:

CMDSEC

Reference information: CMDSEC

5.6	6.1	6.2	CICS TS 6.3
CHANGED: The ALWAYS option no longer affects category 3 transactions.

CONFDATA

Reference information: CONFDATA

5.6	6.1	6.2	CICS TS 6.3
CHANGED: The default is changed to HIDE. The HIDE option replaces HIDETC, which means that all transport data is subject to CONFDATA. If the deprecated CONFDATA=HIDETC is specified in the SIT or in an override, CONFDATA=HIDE is assumed, and no message will be issued.

CPSMCONN

Reference information: CPSMCONN

5.6	6.1	6.2	CICS TS 6.3
CHANGED with APAR: New option SMSSJ initializes a single CICS region that is not part of a CICSplex as a CICS System Management Single Server (SMSS) and automatically creates a Liberty JVM server named EYUCMCIJ as the CMCI JVM server of the region.	NEW OPTION: SMSSJ CPSMCONN=SMSSJ initializes a single CICS region that is not part of a CICSplex as a CICS System Management Single Server (SMSS) and automatically creates a Liberty JVM server named EYUCMCIJ as the CMCI JVM server of the region.

DTRPGM

Reference information: DTRPGM

5.6	6.1	6.2	CICS TS 6.3
	CHANGED: When DTRPGM=NONE is specified, no routing program is invoked. If you are using a routing program with the name of NONE, you must rename the program and change the DTRPGM setting accordingly.

DUMP

Reference information: DUMP

5.6	6.1	6.2	CICS TS 6.3
NEW OPTION: TABLEONLY Allows suppression of system dumps except for those that have an entry in the dump table that allow sdumps to be taken.

DUMPSW

Reference information: DUMPSW

5.6	6.1	6.2	CICS TS 6.3
NEW OPTION: ALL Allows continuous switching between the two transaction dump data sets DFHDMPA and DFHDMPB.

GMTRAN

Reference information: GMTRAN

5.6	6.1	6.2	CICS TS 6.3
CHANGED: The DISCONNECT option is extended to the CICS-supplied sign-off transaction CESF, forcing the terminal session to be disconnected upon sign-off.

KEYRING

Reference information: KEYRING

5.6	6.1	6.2	CICS TS 6.3
CHANGED with APAR PH49253: Accepts more formats of key ring names to allow use of key rings that are not owned by the region user ID.	CHANGED with APAR PH49261: Accepts more formats of key ring names to allow use of key rings that are not owned by the region user ID.	CHANGED: Accepts more formats of key ring names to allow use of key rings that are not owned by the region user ID.	CHANGED: When KEYRING is set, CICS tries to read the defaultciphers.xml from USSCONFIG. If it is not found, then it tries it from USSHOME. If it also fails, then error message DFHSO0176E is generated and CICS fails to start.

MAXTLSLEVEL

Reference information: MAXTLSLEVEL

5.6	6.1	6.2	CICS TS 6.3
	NEW		REMOVED OPTION: TLS11

MINTLSLEVEL

Reference information: MINTLSLEVEL

5.6	6.1	6.2	CICS TS 6.3
	NEW OPTION: TLS13 STABILIZED OPTION: TLS11 REMOVED OPTIONS: TLS10 TLS10ONLY		REMOVED OPTION: TLS11

RACFSYNC

Reference information: RACFSYNC

5.6	6.1	6.2	CICS TS 6.3
		NEW OPTION: CPSM

TRTABSZ

Reference information: TRTABSZ

5.6	6.1	6.2	CICS TS 6.3
CHANGED: Minimum changed to 1024 KB.		CHANGED: Minimum changed to 12288 KB (12 MB).

TRTRANSZ

Reference information: TRTRANSZ

5.6	6.1	6.2	CICS TS 6.3
CHANGED: Minimum changed to 1024 KB.

XPPT

Reference information: XPPT

5.6	6.1	6.2	CICS TS 6.3
		NEW OPTIONS: ALL DPLONLY