What's new

This page contains recent and forthcoming additions of note to Model 204 documentation.

Janus/TN3270 Debugger Build 66 and 67

On July 5, 2017, Build 67 of the Janus/TN3270 Debugger Client was released. On April 3, 2017, Build 66 was released.

When Build 66 is used with Model 204 version 7.7, you can configure automatic creation of a new Client log file on a daily basis to prevent excessive growth of the log. You can also turn logging off.

Build 67 lets you specify how many days worth of previous Client logs to retain. The new daily log is always named log.txt; the names of previous daily logs include their creation dates.

Build 67 also lets you relocate and optionally rename the installed default locations of the Debugger Client Help file, its PDF-file representation, or both.

See the Debugger User's Guide for details (Builds 66 and 67 in the "Release Notes" chapter).

Model 204 Version 7.7

Model 204 7.7 is commercially available in January, 2017.

The main features in this release are summarized below and described in greater detail in the Release notes for Model 204 version 7.7.

Category	Feature
Performance	Continued expansion of 64-bit addressability. See Elimination of BTB buffers. Greater zIIP processor availability: M204 HPO and Fast/Unload HPO. See zIIP exploitation. zIIP load tuning. See MPDELAYZ, SCHDOFLS, SCHDOPT. Essential removal of application limits on the number of images, screens, and menus. Support for large data sets (as many as 16 million tracks) for the Model 204 Checkpoint facility CHKPOINT or CHKPNTS data sets. See ROLL BACK processing, Pass 2.
Security	Stronger cryptographic algorithms: SHA-384, SHA-512. See "SSL" String methods, New DigestAlgorithm values, and New default certificate-signing algorithm. Longer RSA keys (as many as 4096 bits). See Janus Network Security ciphers and private keys. Support for longer and mixed-case login passwords.
Add-on enhancements	A more versatile Fast/Unload through integration with Model 204. Janus products' support for the IPV6 network protocol, expanding the network address space from 32 to 128 bits.

Fast/Unload Version 7.7

Highlights of this version include the integration of Fast/Unload with the Model 204 Online load module, the broader availability of zIIP exploitation, and the change of the product version number to match the version number of Model 204.

The main features in this release (January, 2017) are described in the Release notes for Model 204 version 7.7.

DROWN security threat to Janus SSL ports

Janus Network Security customers should be aware of a security threat known as the "DROWN attack" (https://drownattack.com/). The DROWN threat exploits a security vulnerability of network SSL ports that use SSL V2.

See the DROWN security threat page for recommendations for responding to this threat.