=================================
                               RELEASE NOTES
                                    FOR
                   INFORMIX-Client SDK 2.01.UC1   PRODUCT RELEASE       
                               DATE: 09 Feb 1998
                      =================================

Release notes for client products available as part of the INFORMIX-
Client SDK 2.0 are in the following files:

CLIREL_2.8       INFORMIX-CLI Release Notes

CPPREL_2.5       C++ Object Interface Release Notes

ESQLCREL_9.1     INFORMIX-ESQL/C Release Notes

GLSAPIREL_3.0    INFORMIX-GLS Release Notes

JAVAREL_1.0      Java API Release Notes

ODBCREL_3.0      INTERSOLV DataDirect ODBC Driver Release Notes

The following is a quick summary of the client SDK installation process
including new changes in this release. For a complete description of
all command line options of all installation scripts, please refer to
your Installation Guide.

In the following, I-CONNECT 2.01 refers to the conn tar file in the Client 
SDK 2.01 bundle, and ClientSDK 2.01 refers to the clientsdk tar file in 
the Client SDK 2.01 bundle.

(1) If I-CONNECT 2.01 is NOT installed on top of an existing
    7.2x ESQL/C installation, 

    (a) both "installconn" and "installconn -u" will install 2.01 
        I-CONNECT exactly the same as the current 7.23 I-CONNECT
        "installconn";
        (Note, the -u option is only available in UNIX. NT ESQL/C
         does not need this option.)

    (b) any existing 7.2x UNIX ESQL/C (and 7.23 NT ESQL/C) applications 
        can use this installed I-CONNECT without relinking or 
        recompilation. If recompilation is not performed, only 7.2x level
        functionality and some bug fixes will be available.
        To recompile and get new functionality, they would need
        the development version of the product (ClientSDK 2.01 tar file).

(2) If I-CONNECT 2.01 is installed on top of an existing 7.2x
    ESQL/C installation,

    (a) "installconn" will install 9.14 ESQL/C shared libraries,
        and either KEEP the 7.2x shared libraries or REPLACE them
        with the 9.14 ones. The script "installconn" will ask 
        you whether you want to overwrite the existing shared 
        libraries or not. If the existing shared libraries are
        chosen NOT to be overwritten, then
        (a.1) existing 7.2x applications will continue to use
              the existing 7.2x shared libraries,
        (a.2) existing 9.1x applications can use the 9.14 shared
              libraries.
        If the existing shared libraries are overwritten, then
        the effect is the same as (b)(a.1) below.

    (b) "installconn -u" will install 9.14 UNIX ESQL/C shared libraries,
        and REPLACE 7.2x shared libraries with the 9.14 ones.
        (Actually, only the links are updated.)
        (a.1) Both existing 7.2x (and 9.1x) applications will then use 
              the 9.14 shared libraries, and they should all work 
              correctly. (The 7.2x shared libraries will
              not be accessible by the ESQL/C preprocessor.)
              No relinking or recompilation is required. 
              However, only 7.2x level functionality and 
              some bug fixes will be available if an 7.2x application
              is not recompiled.

(3) Installing ClientSDK 2.01...

    (a) If ClientSDK 2.01 is installed on top of an existing
        7.2x ESQL/C installation, it will always REPLACE 7.2x 
        shared libraries with the 9.14 ones. If you intend to
        continue using the 7.2x ESQL/C preprocessor or shared
        libraries, ClientSDK 2.01 should be installed in a
        separate directory.

    (b) Regardless whether ClientSDK 2.01 is installed on top of
        an existing 7.2x ESQL/C or not, an existing 7.2x application
        CAN use the 9.14 ESQL/C shared libraries in this installation
        without relinking or recompilation.
    
(4) In order to recompile 7.2x applications with 9.14 ESQL/C, customers
    need to install ClientSDK 2.01. The command "installclientsdk"
    is used to install clientsdk product which contains 9.14 ESQL/C
    (and other client products). Like the current "installesql",
    "installclientsdk" will overwrite all files in an existing
    7.2x ESQL/C installation. There is no -u option for installclientsdk.