I understand you're looking for . However, I must clarify a few important points before providing guidance:
If you are upgrading from V5.5, you will need a new license key ; older licenses are not directly compatible with V5.6.
While the technical capability to find "cracked" versions of SIMATIC Manager v5.6 exists, the process is illegal and highly dangerous for industrial infrastructure. There is of this software for indefinite use. To ensure system integrity, security, and legal compliance, a license must be purchased from Siemens.
October 26, 2023 Subject: Feasibility, Risks, and Legal Implications of Acquiring SIMATIC Manager v5.6 at No Cost