Lazy loading, the TPA list from deps.json, resolution order and events, common load exceptions and the tools to trace loading.

Custom and collectible AssemblyLoadContext, AssemblyDependencyResolver, shared contracts and type identity, and diagnosing unload leaks.

Roslyn lowering of high-level C# constructs into simpler C# and IL, and what Debug versus Release changes.

The path from IL to native code: method descriptors, precode and prestub, code heap, back-patching, and shared versus specialised generic code.

Inlining, constant folding, bounds-check elimination, devirtualisation, loop optimisations, struct promotion and escape analysis, and how to verify them.

Object header, MethodTable pointer and fields; MethodTable versus EEClass versus RuntimeType; minimum object size; inspecting with SOS.

Header bits for thin locks and hash codes, inflation to the sync block table, Monitor internals, and System.Threading.Lock.

Vtable slots in the MethodTable, the instruction sequence of a virtual call, override versus new, sealed and devirtualisation.

Interface maps, virtual stub dispatch (indirection cells, dispatch and resolve stubs), default interface methods, constrained calls on structs.

RuntimeType and member caches, Invoke costs and the .NET 7/8 invoker improvements, delegates, compiled expressions, UnsafeAccessor and source generators.

Roslyn's phases, immutable syntax trees, Compilation and SemanticModel, IOperation, emit, the compiler server and using the APIs to build tools.

Source generator authoring: IIncrementalGenerator, project setup (netstandard2.0, analyser references), post-initialisation output, debugging, packaging and pitfalls.

Incremental pipelines, caching and equality, ForAttributeWithMetadataName, avoiding symbols and syntax in models, and measuring generator performance.

Authoring DiagnosticAnalyzer: descriptors, registration actions, concurrency, generated code, testing with the Roslyn testing packages, severity configuration and packaging.

CodeFixProvider authoring: FixableDiagnosticIds, RegisterCodeFixesAsync, CodeAction with equivalence keys, syntax editing with trivia, Fix All and testing.

Comparing source generators, MSBuild-generated files (gRPC, OpenAPI), T4, IL weaving and interceptors for build-time code generation, with trade-offs.

The generational hypothesis, Gen 0/1/2, promotion, card tables and write barriers, regions, and mark-sweep-compact.

Allocation contexts and bump-pointer allocation, the Gen 0 budget, what triggers a Gen 0 GC, allocation rate metrics and reducing allocations.

Gen 1 as a buffer between short- and long-lived objects, Gen 1 GCs, objects that die soon after reaching Gen 2, and how to fix mid-life lifetimes.

Full GCs, triggers (budget, LOH allocation, induced, low memory), blocking versus background, compaction, and a method to diagnose frequent Gen 2 collections.