# 1.0.0-beta.9 Collection Alias Unification And Generic Reservation

Status: release scope for `1.0.0-beta.9`.

`1.0.0-beta.9` is a Slovo stdlib/docs slice on top of the beta.8 concrete
alias foundation. It applies transparent aliases to the repeated concrete
collection and value-family facades without changing the public helper surface
or executable semantics.

## Source Surface

Current source-authored facades may declare module-local aliases such as:

```slo
(type VecBool (vec bool))
(type OptionString (option string))
(type ResultU64 (result u64 i32))
```

The aliases are used only inside their defining module. Exported helper names
and helper meanings remain concrete, and importers observe normalized concrete
types.

## Applied Scope

- `lib/std/vec_i32.slo`
- `lib/std/vec_i64.slo`
- `lib/std/vec_f64.slo`
- `lib/std/vec_bool.slo`
- `lib/std/vec_string.slo`
- `lib/std/option.slo`
- `lib/std/result.slo`

The vector facades use one local alias for the concrete vector family. The
option and result facades use local aliases for the current concrete option and
result families.

## Contract

- Current vectors remain concrete families: `(vec i32)`, `(vec i64)`,
  `(vec f64)`, `(vec bool)`, and `(vec string)`.
- Current options and results remain concrete families over the explicitly
  promoted payload shapes.
- Aliases are transparent, module-local, and erased before typed-core lowering,
  backend layout, ABI decisions, runtime behavior, and cross-module signatures.
- Public helper names, exports, constructors, runtime calls, and behavior are
  preserved.
- Public API documentation must not turn these local aliases into imported
  public type names; the semantic contract is the normalized concrete target
  type.

## Deferrals

This release does not add executable generics, generic aliases, parameterized
aliases, maps, sets, traits, inference, monomorphization, iterators, new
compiler-known runtime names, stable ABI/layout promises, or a stable
standard-library API freeze.

The generic/map/set direction is reserved through diagnostics and design
language only. Future work must define syntax, typed-core representation,
lowering, conformance gates, compatibility policy, and stdlib migration rules
before any executable generic collection surface is promoted.