  A new release of the Monte Carlo event generator Herwig (version 7.3) has
been launched. This iteration encompasses several enhancements over its
predecessor, version 7.2. Noteworthy upgrades include: the implementation of a
process-independent electroweak angular-ordered parton shower integrated with
QCD and QED radiation; a new recoil scheme for initial-state radiation
improving the behaviour of the angular-ordered parton shower; the incorporation
of the heavy quark effective theory to refine the hadronization and decay of
excited heavy mesons and heavy baryons; a dynamic strategy to regulate the
kinematic threshold of cluster splittings within the cluster hadronization
model; several improvements to the structure of the cluster hadronization model
allowing for refined models; the possibility to extract event-by-event
hadronization corrections in a well-defined way; the possibility of using the
string model, with a dedicated tune. Additionally, a new tuning of the parton
shower and hadronization parameters has been executed. This article discusses
the novel features introduced in version 7.3.0.
